Remove file-loader dependency (#15196)

- Upgrade webpack to 5.28 to enable publicPath option
- Use asset modules in place of deprecated file-loader

Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Lauris BH <lauris@nix.lv>

webpack.config.js

@@ -211,29 +211,19 @@ module.exports = {
       },
       {
         test: /\.(ttf|woff2?)$/,
-        use: [
-          {
-            loader: 'file-loader',
-            options: {
-              name: '[name].[ext]',
-              outputPath: 'fonts/',
-              publicPath: (url) => `../fonts/${url}`, // required to remove css/ path segment
-            },
-          },
-        ],
+        type: 'asset/resource',
+        generator: {
+          filename: 'fonts/[name][ext]',
+          publicPath: '/', // required to remove css/ path segment
+        }
       },
       {
         test: /\.png$/i,
-        use: [
-          {
-            loader: 'file-loader',
-            options: {
-              name: '[name].[ext]',
-              outputPath: 'img/webpack/',
-              publicPath: (url) => `../img/webpack/${url}`, // required to remove css/ path segment
-            },
-          },
-        ],
+        type: 'asset/resource',
+        generator: {
+          filename: 'img/webpack/[name][ext]',
+          publicPath: '/', // required to remove css/ path segment
+        }
       },
     ],
   },