fix(app-router-playground): clean warnings and stabilize checks#694

haddoumounir wants to merge 1 commit intocloudflare:maincloudflare/vinext:mainfrom

haddoumounir:fix/app-router-playground-react-doctor-build-warningshaddoumounir/vinext:fix/app-router-playground-react-doctor-build-warningsCopy head branch name to clipboard