Update dependency mdi-react to v8

package.json

@@ -9,7 +9,7 @@
   "dependencies": {
     "express": "4.17.1",
     "isomorphic-fetch": "3.0.0",
-    "mdi-react": "4.4.0",
+    "mdi-react": "8.0.0",
     "next": "8.1.0",
     "polished": "4.1.3",
     "react": "16.14.0",

yarn.lock

@@ -3594,10 +3594,10 @@ md5.js@^1.3.4:
     inherits "^2.0.1"
     safe-buffer "^5.1.2"
 
-mdi-react@4.4.0:
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/mdi-react/-/mdi-react-4.4.0.tgz#5901a3eda1f0dc5eacec1b13f2e2ee40e883b791"
-  integrity sha512-IxWW/10EHSYSDz5Hce1JzgvBiNtUHWERVDRWY6S+Bc07zUjWcRvQFDQND8GIgXG2Mnr/7uQFk25MBtSgLHQ0Gw==
+mdi-react@8.0.0:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/mdi-react/-/mdi-react-8.0.0.tgz#4c9efc7ce276e727b8c87f63d6f406dc8510c21a"
+  integrity sha512-s0bus+FtFPQAihO2XXLSoJlXbM+xKPMBERiSB7RkBpsG9oOV1ILRQnReWcPdfOOAExAYPKJAs0H5z3clqTkvmw==
 
 [email protected]:
   version "0.3.0"