Moderation: keep (or return to) the post after approving, instead of it disappearing

Description: When approving / commenting / editing a feedback from the moderation view, keep the admin on that post (or redirect back to it) instead of removing it from the view. Restores the pre-revamp behaviour. A simple "Approve & open in new tab" option would also solve this. Problem: Since the admin app revamp, a feedback disappears from the moderation view as soon as you approve/comment/edit it. If you then need to act on it again (e.g. to merge a duplicate you just found), you have to hunt for it — and the main search bar doesn't work in several parts of the app, so admins fall back to sorting by "last updated" or a secondary in-page search bar. This costs ~30s–1min per feedback, roughly 25–50 minutes/week for the team, plus ongoing frustration from page-switching and re-typing. Benefit: Removes the painful "find the post again" steps and speeds up moderation — a single change that eliminates the worst part of the current flow.