[MU4 Issue][Accessibility] Midi mappings dialog is not closed after pressing Esc button on keyboard

[abariska]

To Reproduce Steps to reproduce the behavior:

1. Create a simple score
2. Open Preferences
3. Go to MIDI mappings
4. Press Assign MIDI mapping button
5. Try to close the dialog by pressing Esc button

Expected behavior Dialog is closed

Screenshots

[HemantAntony]

There is also no navigation for this dialog. So won't this be more critical?