git_ui: Improve error handling in commit message generation (#29005)

After and Before video of the issue and solution.


https://github.com/user-attachments/assets/40508f20-5549-4b3d-9331-85b8192a5b5a



Closes #27319

Release Notes:

- Provide Feedback on commit message generation error

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Signed-off-by: Umesh Yadav <umesh4257@gmail.com>
Co-authored-by: Cole Miller <cole@zed.dev>
3853e83da7Umesh Yadav committed on 6/9/2025, 2:20:19 PM· committed by GitHubparent047a7f5
1 file changedLine totals unavailable