Fix SCSS detection to match both .scss and .module.scss files

Updated the rule detection to test against both 'example.scss' and
'example.module.scss' so sass-resources-loader is applied to both
global SCSS rules and CSS Module SCSS rules.

This fixes test failures where CSS Modules weren't being processed
correctly because the detection only matched regular .scss files.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

spec/dummy/config/webpack/commonWebpackConfig.js

@@ -25,7 +25,7 @@ const sassLoaderConfig = {
 baseClientWebpackConfig.module.rules.forEach((rule) => {
   if (Array.isArray(rule.use)) {
     // Add sass-resources-loader to all SCSS rules (both .scss and .module.scss)
-    if (rule.test && rule.test.test('example.scss')) {
+    if (rule.test && (rule.test.test('example.scss') || rule.test.test('example.module.scss'))) {
       rule.use.push(sassLoaderConfig);
     }