Build: Introduce webpack manifest plugin (#49798)

* build(webpack): introduce manifest plugin

* build(webpack): move manifest.json to root of project and git ignore

scripts/webpack/webpack.prod.js

@@ -5,6 +5,7 @@ const HtmlWebpackPlugin = require('html-webpack-plugin');
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const path = require('path');
 const TerserPlugin = require('terser-webpack-plugin');
+const { WebpackManifestPlugin } = require('webpack-manifest-plugin');
 const { merge } = require('webpack-merge');
 
 const HTMLWebpackCSSChunks = require('./plugins/HTMLWebpackCSSChunks');
@@ -81,6 +82,10 @@ module.exports = (env = {}) =>
         chunksSortMode: 'none',
       }),
       new HTMLWebpackCSSChunks(),
+      new WebpackManifestPlugin({
+        fileName: path.join(process.cwd(), 'manifest.json'),
+        filter: (file) => !file.name.endsWith('.map'),
+      }),
       function () {
         this.hooks.done.tap('Done', function (stats) {
           if (stats.compilation.errors && stats.compilation.errors.length) {