linux: Add `file_finder::Toggle` key binding (#34380)

This fixes a bug on linux where repeated presses of p while holding down
the ctrl modifier navigates through options in reverse.

Closes #34379 

The main issue is the default biding of ctrl-p on linux is
menu::SelectPrevious hence in context "context": "FileFinder ||
(FileFinder > Picker > Editor)" it would navigate in reverse

Release Notes:

- Fixed `file_finder::Toggle` on Linux not scrolling forward
85d12548a1Somtoo Chukwurah committed on 7/13/2025, 11:35:03 PM· committed by GitHubparent0af7d32
1 file changedLine totals unavailable