Add staged status information to diff hunks (#24475)

Release Notes:

- Render unstaged hunks in the project diff editor with a slashed
background

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Co-authored-by: maxbrunsfeld <max@zed.dev>
Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>
8f75fe25e5Cole Miller committed on 2/11/2025, 2:43:25 AM· committed by GitHubparenta9de9e3
31 files changedLine totals unavailable