Make the branch picker in the commit modal a popover (#25697)

Release Notes:

- N/A

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Co-authored-by: Nate Butler <iamnbutler@gmail.com>
8ba7b349a5Mikayla Maki committed on 2/27/2025, 1:56:07 AM· committed by GitHubparent11838cf
20 files changedLine totals unavailable