Fix Features link on /windows/apps/ hub page (#564802)

The 'Features' link in the Develop card incorrectly pointed to
/windows/apps/develop/accessibility. Fixed to point to the Features
overview page created in PR #6559.

Co-authored-by: Copilot <[email protected]>

Author: GrantMeStrength

hub/apps/index.yml

@@ -59,7 +59,7 @@ productDirectory:
     links:
       - url: /windows/apps/develop/
         text: Overview
-      - url: /windows/apps/develop/accessibility
+      - url: /windows/apps/develop/features-overview
         text: Features
       - url: /windows/apps/desktop/modernize/
         text: Use features with other UI frameworks