fix(modules): add stylus loader as an option to be uncommented (#3710)

.webpack/rules/stylusToJavaScript.js

@@ -0,0 +1,10 @@
+const stylusToJavaScript = {
+  test: /\.styl$/,
+  use: [
+    { loader: 'style-loader' }, // 3. Style nodes from JS Strings
+    { loader: 'css-loader' }, // 2. CSS to CommonJS
+    { loader: 'stylus-loader' }, // 1. Stylus to CSS
+  ],
+};
+
+module.exports = stylusToJavaScript;