Update packages

frontend/custom-webpack.config.js

@@ -6,4 +6,22 @@ export default {
     new webpack.ContextReplacementPlugin(/moment[\/\\]locale$/, /en/),
     // new BundleAnalyzerPlugin(),
   ],
+  module: {
+    rules: [
+      {
+        test: /\.m?js$/,
+        exclude: /node_modules/,
+        use: {
+          loader: 'babel-loader',
+          options: {
+            presets: [
+              [
+                '@babel/preset-env',
+              ],
+            ],
+          },
+        },
+      },
+    ],
+  },
 };