Fix JS test cases and other JS build issues caused due to dependabot updates.

web/webpack.config.js

@@ -74,19 +74,6 @@ const copyFiles = new CopyPlugin({
   ],
 });
 
-const imageMinimizer = new ImageMinimizerPlugin({
-  test: /\.(jpe?g|png|gif)$/i,
-  minimizerOptions: {
-    // Lossless optimization with custom option
-    // Feel free to experiment with options for better result for you
-    plugins: [
-      ['mozjpeg', { progressive: true }],
-      ['optipng', { optimizationLevel: 7 }],
-      ['pngquant', {quality: [0.75, .9], speed: 3}],
-    ],
-  },
-});
-
 function cssToBeSkiped(curr_path) {
   /** Skip all templates **/
   if(curr_path.indexOf('template') > -1) {
@@ -577,7 +564,7 @@ module.exports = [{
     ignored: /node_modules/,
   },
   optimization: {
-    minimizer: [
+    minimizer: PRODUCTION ? [
       new TerserPlugin({
         parallel: true,
         extractComments: true,
@@ -585,7 +572,21 @@ module.exports = [{
           compress: true,
         },
       }),
-    ],
+      new ImageMinimizerPlugin({
+        test: /\.(jpe?g|png|gif)$/i,
+        minimizer: {
+          implementation: ImageMinimizerPlugin.imageminMinify,
+          options: {
+            plugins: [
+              'imagemin-gifsicle',
+              'imagemin-mozjpeg',
+              'imagemin-pngquant',
+              'imagemin-svgo',
+            ],
+          },
+        },
+      }),
+    ] : [],
     splitChunks: {
       cacheGroups: {
         vendor_main: {
@@ -645,7 +646,6 @@ module.exports = [{
     sourceMapDevToolPlugin,
     bundleAnalyzer,
     copyFiles,
-    imageMinimizer,
   ]: [
     extractStyle,
     providePlugin,