Bring threaded comment to github conversation in Issues and PR, it already be available on discussions
GitLab implementation
https://gitlab.com/gitlab-org/gitlab/-/merge_requests/32372
'.js-discussions-previewable-comment-form' can be found on git community post, but not on PR
discussions/previewable-comment.ts only on community - almost all of discussions/ folder content missing on PR
'.js-discussions-comment-actions-rendered-button' is being observed