project panel: Remove extra separator when "Rename" is hidden (#41639)

Closes https://github.com/zed-industries/zed/issues/41633

Release Notes:

- N/A
1f938c08d2Danilo Leal committed on 10/31/2025, 1:55:08 PM· committed by GitHubparentf2ce06c
1 file changedLine totals unavailable