User Experience:
Users who rely on screen reader/Keyboard will not be able to perform action efficiently if shortcuts are not working when command palette is open

Test Environment:
App: Windows Terminal Preview
Feature: Command Palette
OS: Win 10 2004 Build (19041.508)

Repro Steps:
1.Open Windows terminal Preview app
2.Open Command Palette using shortcut (Ctrl+shift+p)
3.Verify whether user is able to perform any shortcut operation when command palette is open.

Actual:
User is not able to perform action using shortcuts when command palette is open.

Expected:
User should be able to perform the shortcut operation even when the command palette is open.