Add e2e test app for user feedback

[chargome]

Description

we can basically use https://github.com/ryan953/nextjs-test-feedback and add assertions there

[linear]

JS-1478

[github-actions]

A PR closing this issue has just been released 🚀

This issue was referenced by PR #18877, which was included in the 10.35.0 release.