emacs: Add editor::FindAllReferences keybinding (#36840)

This commit maps `editor::FindAllReferences` to Alt+? in the Emacs
keymap.

Release Notes:

- N/A
2c64b05ea4Daniel Martín committed on 8/26/2025, 1:43:58 PM· committed by GitHubparentb7dad2c
2 files changedLine totals unavailable