refactor: add build script to package.json for production builds

Author: muchaisam

package.json

@@ -4,6 +4,7 @@
         "dev": "npm run development",
         "development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
         "watch": "npm run development -- --watch",
+        "build": "npm run production",
         "prod": "npm run production",
         "production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
     },