Tweak stubs for Mix 6 (#193)

Author: JeffreyWay

src/Presets/react-stubs/webpack.mix.js

@@ -11,5 +11,6 @@ const mix = require('laravel-mix');
  |
  */
 
-mix.react('resources/js/app.js', 'public/js')
+mix.js('resources/js/app.js', 'public/js')
+    .react()
     .sass('resources/sass/app.scss', 'public/css');

src/Presets/vue-stubs/app.js

@@ -6,7 +6,7 @@
 
 require('./bootstrap');
 
-window.Vue = require('vue');
+window.Vue = require('vue').default;
 
 /**
  * The following block of code may be used to automatically register your

src/Presets/vue-stubs/webpack.mix.js

@@ -12,4 +12,5 @@ const mix = require('laravel-mix');
  */
 
 mix.js('resources/js/app.js', 'public/js')
+    .vue()
     .sass('resources/sass/app.scss', 'public/css');