picker: Reintroduce headers and footers (#3786)

Update VCS menu to match Zed1.
<img width="444" alt="image"
src="https://github.com/zed-industries/zed/assets/24362066/6cb27510-f501-46bc-862f-1fb78006b77c">

Release Notes:

- N/A
25a5eda76fPiotr Osiewicz committed on 12/22/2023, 5:10:59 PM· committed by GitHubparent87ff5f0
2 files changedLine totals unavailable