Fix repo path to project path conversion in git panel (#40535)

Closes https://github.com/zed-industries/zed/issues/40422
Closes https://github.com/zed-industries/zed/issues/40379
Closes https://github.com/zed-industries/zed/issues/40307

Release Notes:

- Fixed an issue where the project diff view did not work for multi-repo
projects on Windows when using WSL or SSH remoting
4dd463f8acMax Brunsfeld committed on 10/17/2025, 9:57:03 PM· committed by GitHubparent22fd91d
1 file changedLine totals unavailable