next.js

62c2f74b - Clean up `react-dev-overlay` before fork (#74016)

Clean up `react-dev-overlay` before fork (#74016) Clean up `react-dev-overlay/` before forking for new UI. - Ported `pages/ReactDevOverlay/tsx` logic to a hook. - Moved `client-entry.tsx` to `app/` as it's only used in app router. Closes NDX-590