Add icon and hover description for symlinks (#12263)

![image](https://github.com/zed-industries/zed/assets/12102857/c6ed8140-1256-4618-aa46-64e66becdf7e)


![Screenshot_20240524_201346](https://github.com/zed-industries/zed/assets/12102857/2577067c-4f61-486a-8613-14941555f5a8)

Resolves https://github.com/zed-industries/zed/issues/12142


Release Notes:

- Added in project panel an icon and hover description for symlinks ([12142](https://github.com/zed-industries/zed/issues/12142))
a03813a471Patryck committed on 5/28/2024, 6:50:58 AM· committed by GitHubparentf7115be
2 files changedLine totals unavailable