🔧(frontend) ignore @formatjs/fast-memoize source map

Since the latest version of @formatjs, a warning during webpack
build is displayed. Actually, on source map generation, there is an
issue with the latest version of the package `@formatjs/fast-memoize`
So as a workaround, we tweak our webpack config to ignore this package
on source map generation.

formatjs/formatjs#4725

src/frontend/webpack.config.js

@@ -99,7 +99,16 @@ module.exports = (env) => {
           },
         },
         // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
-        { enforce: 'pre', test: /\.js$/, loader: 'source-map-loader' },
+        {
+          enforce: 'pre',
+          test: /\.js$/,
+          loader: 'source-map-loader',
+          options: {
+            filterSourceMappingUrl: (url, resourcePath) => {
+              return !/@formatjs\/fast-memoize/i.test(resourcePath);
+            },
+          },
+        },
       ],
     },