Bug: Keyboard shortcuts don't work after clicking blank area in TitleBar or Toolbar

### Description

Starting with #16741, keyboard shortcuts don't work after clicking a blank area in the TitleBar or Toolbar.

### Steps To Reproduce

1. Click blank area in TitleBar or Toolbar
2. Try using a keyboard shortcut

### Files Version

v3.9.80

### Windows Version

Windows 11

### User ID

_No response_

### Log File

NA