fix(@angular-devkit/build-angular): don't watch nested node_modules when polling is enabled

Previously the glob didn't catch nested `node_modules`.

Closes #22163

Author: alan-agius4

packages/angular_devkit/build_angular/src/webpack/utils/helpers.ts

@@ -102,7 +102,7 @@ export function getWatchOptions(
 ): NonNullable<Configuration['watchOptions']> {
   return {
     poll,
-    ignored: poll === undefined ? '**/$_lazy_route_resources' : 'node_modules/**',
+    ignored: poll === undefined ? '**/$_lazy_route_resources' : '**/node_modules/**',
   };
 }