## Summary
- Keep auto-reveal behavior for ignored files unchanged (no implicit
reveal).
- When an ignored file is already visible in the project panel, mark it
as selected on `ActiveEntryChanged`.
- Add regression coverage for switching back to a visible gitignored
file.
## Testing
- `project_panel_tests::test_autoreveal_and_gitignored_files`
- `project_panel_tests::test_gitignored_and_always_included`
- `project_panel_tests::test_explicit_reveal`
Closes#49515
Release Notes:
- Fixed project panel not updating selection when switching to a
gitignored file that was already visible.