fix: use regex includes in webpack CSS rules for highlight.js

The previous commit added highlight.js to the path-string include list
but path.resolve string comparison was not matching subdirectories
reliably. Switch both prod and dev CSS rules to use regex includes
(/node_modules[\\/]highlight\.js/ and /node_modules[\\/]@patternfly[\\/]chatbot/)
which unambiguously match the module paths webpack resolves.

Build now passes with 0 errors (TypeScript 6.0.3, ignoreDeprecations: "6.0").

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: matthewcarleton

hpux-prototypes/webpack.dev.js

@@ -28,8 +28,8 @@ export default merge(common('development'), {
         test: /\.css$/,
         include: [
           ...stylePaths,
-          path.resolve('./node_modules/@patternfly/chatbot'),
-          path.resolve('./node_modules/highlight.js'),
+          /node_modules[\\/]@patternfly[\\/]chatbot/,
+          /node_modules[\\/]highlight\.js/,
         ],
         use: ['style-loader', 'css-loader'],
       },

hpux-prototypes/webpack.prod.js

@@ -33,8 +33,8 @@ export default merge(common('production'), {
         test: /\.css$/,
         include: [
           ...stylePaths,
-          path.resolve('./node_modules/@patternfly/chatbot'),
-          path.resolve('./node_modules/highlight.js'),
+          /node_modules[\\/]@patternfly[\\/]chatbot/,
+          /node_modules[\\/]highlight\.js/,
         ],
         use: [MiniCssExtractPlugin.loader, 'css-loader'],
       },