git_ui: Show author name on commits in branch picker (#36812)

See related discussion
https://github.com/zed-industries/zed/discussions/36511.

<img alt="zed"
src="https://github.com/user-attachments/assets/da7fc30d-2504-48f4-a392-7c8d5cd8acb1"
/>

Release Notes:

- Added option to show the author name in a branch picker commit
information

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Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
46fb521333Lev Zakharov committed on 9/9/2025, 6:44:46 PM· committed by GitHubparent9529cd1
11 files changedLine totals unavailable