Fixed locale frontend not picking up regions

This was caused by a webpack config issue that would only look in folders that only had lower case letters. This has been changed to include any word character

Closes #32913

config/webpack.config.js

@@ -100,7 +100,7 @@ var config = {
         loader: 'file-loader',
       },
       {
-        test: /locale\/[a-z]+\/(.*)\.js$/,
+        test: /locale\/\w+\/(.*)\.js$/,
         loader: 'exports-loader?locales',
       },
     ]