Reveal in all multi buffers (#64154)

Closes https://github.com/zed-industries/zed/issues/62909
Closes https://github.com/zed-industries/zed/issues/57396

Release Notes:

- Fixed project panel reveal not working in git diff-related multi
buffers
47b8ea5894Kirill Bulatov committed on 9/14/2026, 3:54:54 PM· committed by GitHubparentf792c2d
10 files changedLine totals unavailable