Support vim-mode in git commit editor (#33222)

Release Notes:

- Added support for vim-mode on git commit editor (modal included)

Side notes: 
- Maybe in the future (or even on this PR) a config could be added to
let the user choose whether to enable vim-mode on this editor or not?
And on the agent message editor as well.
2680a78f9cAlvaro Parker committed on 6/30/2025, 7:55:45 PM· committed by GitHubparent1978289
2 files changedLine totals unavailable