few more formatting fixes

webpack.dev.js

@@ -9,13 +9,13 @@ module.exports = merge(common, {
                 test: /\.less$/,
                 use: [
                     {
-                        loader: "style-loader"
+                        loader: 'style-loader'
                     },
                     {
-                        loader: "css-loader",
+                        loader: 'css-loader',
                     },
                     {
-                        loader: "less-loader",
+                        loader: 'less-loader',
                     }
                 ]
             }