(fix) Fix minor syntax error on webpack and update package.json scripts

Author: avye

package.json

@@ -4,7 +4,7 @@
   "description": "Job application tracking app",
   "scripts": {
     "test": "grunt test",
-    "postinstall": "grunt build",
+    "postinstall": "webpack",
     "coverage": "grunt coverage"
   },
   "repository": {

webpack.config.js

@@ -28,10 +28,10 @@ module.exports = {
       },
       {
         test: /\.scss$/,
-        loaders: "css-loader!sass-loader
+        loaders: "css-loader!sass-loader"
       }
     ]
-  }
+  },
   devServer: {
     contentBase: './build'
   }