diff --git a/yarn.lock b/yarn.lock
index 4948d84..a27803f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1691,6 +1691,10 @@ ansi-regex@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.0.0.tgz#70de791edf021404c3fd615aa89118ae0432e5a9"
 
+ansi-regex@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-5.0.1.tgz#082cb2c89c9fe8659a311a53bd6a4dc5301db304"
+
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
@@ -1701,6 +1705,12 @@ ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
+ansi-styles@^4.0.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.3.0.tgz#edd803628ae71c04c85ae7a0906edad34b648937"
+  dependencies:
+    color-convert "^2.0.1"
+
 any-base@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/any-base/-/any-base-1.1.0.tgz#ae101a62bc08a597b4c9ab5b7089d456630549fe"
@@ -1861,6 +1871,12 @@ async-limiter@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.0.tgz#78faed8c3d074ab81f22b4e985d79e8738f720f8"
 
+async-validator@~1.8.1:
+  version "1.8.5"
+  resolved "https://registry.yarnpkg.com/async-validator/-/async-validator-1.8.5.tgz#dc3e08ec1fd0dddb67e60842f02c0cd1cec6d7f0"
+  dependencies:
+    babel-runtime "6.x"
+
 async@^2.1.4, async@^2.3.0, async@^2.5.0:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
@@ -1967,7 +1983,7 @@ babel-generator@^6.18.0, babel-generator@^6.26.0:
     source-map "^0.5.7"
     trim-right "^1.0.1"
 
-babel-helper-vue-jsx-merge-props@^2.0.3:
+babel-helper-vue-jsx-merge-props@^2.0.0, babel-helper-vue-jsx-merge-props@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/babel-helper-vue-jsx-merge-props/-/babel-helper-vue-jsx-merge-props-2.0.3.tgz#22aebd3b33902328e513293a8e4992b384f9f1b6"
 
@@ -2073,7 +2089,7 @@ babel-register@^6.26.0:
     mkdirp "^0.5.1"
     source-map-support "^0.4.15"
 
-babel-runtime@6.26.0, babel-runtime@^6.22.0, babel-runtime@^6.23.0, babel-runtime@^6.26.0:
+babel-runtime@6.26.0, babel-runtime@6.x, babel-runtime@^6.22.0, babel-runtime@^6.23.0, babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
   dependencies:
@@ -2668,6 +2684,14 @@ cliui@^4.0.0:
     strip-ansi "^4.0.0"
     wrap-ansi "^2.0.0"
 
+cliui@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-6.0.0.tgz#511d702c0c4e41ca156d7d0e96021f23e13225b1"
+  dependencies:
+    string-width "^4.2.0"
+    strip-ansi "^6.0.0"
+    wrap-ansi "^6.2.0"
+
 clone-deep@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/clone-deep/-/clone-deep-2.0.2.tgz#00db3a1e173656730d1188c3d6aced6d7ea97713"
@@ -2710,11 +2734,17 @@ color-convert@^1.9.0, color-convert@^1.9.1:
   dependencies:
     color-name "1.1.3"
 
+color-convert@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-2.0.1.tgz#72d3a68d598c9bdb3af2ad1e84f21d896abd4de3"
+  dependencies:
+    color-name "~1.1.4"
+
 color-name@1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
-color-name@^1.0.0:
+color-name@^1.0.0, color-name@~1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
 
@@ -3046,6 +3076,10 @@ crypto-browserify@^3.11.0:
     randombytes "^2.0.0"
     randomfill "^1.0.3"
 
+crypto-js@^4.0.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/crypto-js/-/crypto-js-4.1.1.tgz#9e485bcf03521041bd85844786b83fb7619736cf"
+
 crypto-random-string@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
@@ -3148,8 +3182,8 @@ css-url-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/css-url-regex/-/css-url-regex-1.1.0.tgz#83834230cc9f74c457de59eebd1543feeb83b7ec"
 
 css-what@2.1, css-what@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.2.tgz#c0876d9d0480927d7d4920dcd72af3595649554d"
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.3.tgz#a6d7604573365fe74686c3f311c56513d88285f2"
 
 css@^2.1.0:
   version "2.2.4"
@@ -3355,6 +3389,10 @@ deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
 
+deepmerge@^1.2.0:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-1.5.2.tgz#10499d868844cdad4fee0842df8c7f6f0c95a753"
+
 deepmerge@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-3.1.0.tgz#a612626ce4803da410d77554bfd80361599c034d"
@@ -3474,6 +3512,10 @@ digest-header@^0.0.1:
   dependencies:
     utility "0.1.11"
 
+dijkstrajs@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/dijkstrajs/-/dijkstrajs-1.0.2.tgz#2e48c0d3b825462afe75ab4ad5e829c8ece36257"
+
 doctrine@1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-1.5.0.tgz#379dce730f6166f76cefa4e6707a159b02c5a6fa"
@@ -3615,6 +3657,17 @@ elegant-spinner@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/elegant-spinner/-/elegant-spinner-1.0.1.tgz#db043521c95d7e303fd8f345bedc3349cfb0729e"
 
+element-ui@^2.13.0:
+  version "2.15.10"
+  resolved "https://registry.yarnpkg.com/element-ui/-/element-ui-2.15.10.tgz#fde0ff5cb4c30e8eb166d617f85916defe5948f1"
+  dependencies:
+    async-validator "~1.8.1"
+    babel-helper-vue-jsx-merge-props "^2.0.0"
+    deepmerge "^1.2.0"
+    normalize-wheel "^1.0.1"
+    resize-observer-polyfill "^1.5.0"
+    throttle-debounce "^1.0.1"
+
 elliptic@^6.0.0:
   version "6.4.1"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.1.tgz#c2d0b7776911b86722c632c3c06c60f2f819939a"
@@ -3635,10 +3688,18 @@ emoji-regex@^7.0.1:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
 
+emoji-regex@^8.0.0:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-8.0.0.tgz#e818fd69ce5ccfcb404594f842963bf53164cc37"
+
 emojis-list@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
 
+encode-utf8@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/encode-utf8/-/encode-utf8-1.0.3.tgz#f30fdd31da07fb596f281beb2f6b027851994cda"
+
 encodeurl@^1.0.1, encodeurl@~1.0.1, encodeurl@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
@@ -4291,6 +4352,13 @@ find-up@^3.0.0:
   dependencies:
     locate-path "^3.0.0"
 
+find-up@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-4.1.0.tgz#97afe7d6cdc0bc5928584b7c8d7b16e8a9aa5d19"
+  dependencies:
+    locate-path "^5.0.0"
+    path-exists "^4.0.0"
+
 flat-cache@^1.2.1:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.4.tgz#2c2ef77525cc2929007dfffa1dd314aa9c9dee6f"
@@ -4478,6 +4546,10 @@ get-caller-file@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
 
+get-caller-file@^2.0.1:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
+
 get-own-enumerable-property-symbols@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-3.0.0.tgz#b877b49a5c16aefac3655f2ed2ea5b684df8d203"
@@ -5256,6 +5328,10 @@ is-fullwidth-code-point@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
 
+is-fullwidth-code-point@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz#f116f8064fe90b3f7844a38997c0b75051269f1d"
+
 is-function@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-function/-/is-function-1.0.1.tgz#12cfb98b65b57dd3d193a3121f5f6e2f437602b5"
@@ -6265,6 +6341,12 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
+locate-path@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-5.0.0.tgz#1afba396afd676a6d42504d0a67a3a7eb9f62aa0"
+  dependencies:
+    p-locate "^4.1.0"
+
 lodash._reinterpolate@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
@@ -6979,6 +7061,10 @@ normalize-url@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.1.0.tgz#307e74c87473efa81969ad1b4bb91f1990178904"
 
+normalize-wheel@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/normalize-wheel/-/normalize-wheel-1.0.1.tgz#aec886affdb045070d856447df62ecf86146ec45"
+
 npm-bundled@^1.0.1:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.0.6.tgz#e7ba9aadcef962bb61248f91721cd932b3fe6bdd"
@@ -7244,6 +7330,12 @@ p-limit@^2.0.0:
   dependencies:
     p-try "^2.0.0"
 
+p-limit@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.3.0.tgz#3dd33c647a214fdfffd835933eb086da0dc21db1"
+  dependencies:
+    p-try "^2.0.0"
+
 p-locate@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
@@ -7256,6 +7348,12 @@ p-locate@^3.0.0:
   dependencies:
     p-limit "^2.0.0"
 
+p-locate@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-4.1.0.tgz#a3428bb7088b3a60292f66919278b7c297ad4f07"
+  dependencies:
+    p-limit "^2.2.0"
+
 p-map@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
@@ -7390,6 +7488,10 @@ path-exists@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
 
+path-exists@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-4.0.0.tgz#513bdbe2d3b95d7762e8c1137efa195c6c61b5b3"
+
 path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
@@ -7514,6 +7616,10 @@ pngjs@^3.0.0, pngjs@^3.3.3:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-3.3.3.tgz#85173703bde3edac8998757b96e5821d0966a21b"
 
+pngjs@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-5.0.0.tgz#e79dd2b215767fd9c04561c01236df960bce7fbb"
+
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
@@ -8250,6 +8356,15 @@ qiniu@^7.2.1:
     tunnel-agent "0.6.0"
     urllib "2.22.0"
 
+qrcode@^1.4.4:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/qrcode/-/qrcode-1.5.1.tgz#0103f97317409f7bc91772ef30793a54cd59f0cb"
+  dependencies:
+    dijkstrajs "^1.0.1"
+    encode-utf8 "^1.0.3"
+    pngjs "^5.0.0"
+    yargs "^15.3.1"
+
 qs@6.5.2, qs@~6.5.2:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
@@ -8609,6 +8724,14 @@ require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
 
+require-main-filename@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-2.0.0.tgz#d0b329ecc7cc0f61649f62215be69af54aa8989b"
+
+resize-observer-polyfill@^1.5.0:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/resize-observer-polyfill/-/resize-observer-polyfill-1.5.1.tgz#0e9020dd3d21024458d4ebd27e23e40269810464"
+
 resolve-cwd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/resolve-cwd/-/resolve-cwd-2.0.0.tgz#00a9f7387556e27038eae232caa372a6a59b665a"
@@ -9214,6 +9337,14 @@ string-width@^3.0.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^5.0.0"
 
+string-width@^4.1.0, string-width@^4.2.0:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
+  dependencies:
+    emoji-regex "^8.0.0"
+    is-fullwidth-code-point "^3.0.0"
+    strip-ansi "^6.0.1"
+
 string_decoder@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.2.0.tgz#fe86e738b19544afe70469243b2a1ee9240eae8d"
@@ -9256,6 +9387,12 @@ strip-ansi@^5.0.0:
   dependencies:
     ansi-regex "^4.0.0"
 
+strip-ansi@^6.0.0, strip-ansi@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
+  dependencies:
+    ansi-regex "^5.0.1"
+
 strip-bom@3.0.0, strip-bom@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
@@ -9460,6 +9597,10 @@ throat@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/throat/-/throat-4.1.0.tgz#89037cbc92c56ab18926e6ba4cbb200e15672a6a"
 
+throttle-debounce@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/throttle-debounce/-/throttle-debounce-1.1.0.tgz#51853da37be68a155cb6e827b3514a3c422e89cd"
+
 through2@^2.0.0, through2@^2.0.2:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.5.tgz#01c1e39eb31d07cb7d03a96a70823260b23132cd"
@@ -10334,6 +10475,14 @@ wrap-ansi@^4.0.0:
     string-width "^2.1.1"
     strip-ansi "^4.0.0"
 
+wrap-ansi@^6.2.0:
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-6.2.0.tgz#e9393ba07102e6c91a3b221478f0257cd2856e53"
+  dependencies:
+    ansi-styles "^4.0.0"
+    string-width "^4.1.0"
+    strip-ansi "^6.0.0"
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
@@ -10450,6 +10599,13 @@ yargs-parser@^11.1.1:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
+yargs-parser@^18.1.2:
+  version "18.1.3"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-18.1.3.tgz#be68c4975c6b2abf469236b0c870362fab09a7b0"
+  dependencies:
+    camelcase "^5.0.0"
+    decamelize "^1.2.0"
+
 yargs-parser@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-5.0.0.tgz#275ecf0d7ffe05c77e64e7c86e4cd94bf0e1228a"
@@ -10496,6 +10652,22 @@ yargs@^12.0.5:
     y18n "^3.2.1 || ^4.0.0"
     yargs-parser "^11.1.1"
 
+yargs@^15.3.1:
+  version "15.4.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-15.4.1.tgz#0d87a16de01aee9d8bec2bfbf74f67851730f4f8"
+  dependencies:
+    cliui "^6.0.0"
+    decamelize "^1.2.0"
+    find-up "^4.1.0"
+    get-caller-file "^2.0.1"
+    require-directory "^2.1.1"
+    require-main-filename "^2.0.0"
+    set-blocking "^2.0.0"
+    string-width "^4.2.0"
+    which-module "^2.0.0"
+    y18n "^4.0.0"
+    yargs-parser "^18.1.2"
+
 yargs@^7.0.0:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-7.1.0.tgz#6ba318eb16961727f5d284f8ea003e8d6154d0c8"