Update webpack dev port

webpack.dev.js

@@ -40,7 +40,7 @@ module.exports = merge(common, {
     contentBase: path.resolve(__dirname, './static'),
     hot: false,
     host: '0.0.0.0',
-    port: env.HTTP_PORT || 8082
+    port: env.HTTP_PORT || 8080
   },
   module: {
     rules: [