vim: Add debug panel ex command (#33560)

Added :Debug to open debug panel, also added
[:display](https://neovim.io/doc/user/change.html#%3Adisplay), alias to
:reg

Release Notes:

- N/A
ba4fc1bcfc5brian committed on 6/28/2025, 3:32:40 AM· committed by GitHubparentbbf16bd
2 files changedLine totals unavailable