Add Palettes Window Not Read by Screen Readers on Windows

[NoahTCarver]

Issue type

UI bug

Bug description

The "Add Palettes" window is not read by screen readers on Windows. I have only been able to focus the buttons contained within once, and have no idea how I did so. The window's contents are apparently always read on macOS and Linux as evidenced by both conversations in the MuseScore discord server and MuseScore Accessibility WhatsApp group.

Steps to reproduce

1. Launch a Windows screen reader (Narrator or NVDA are easiest to obtain).
2. Launch MS 4 and create/open a score.
3. Use the keyboard to navigate to the "Add Palettes" button. Activate it with space/enter.
4. Screen reader reports some form of text "MuseScore4 window."
5. No further keyboard navigation is possible; escape key is only exit.
6. If screen reader does allow navigation, I'd love to know how you did it.7

Screenshots/Screen recordings

No response

MuseScore Version

Version: 4.0.2.230601206 Revision: 48ac167

Regression

I don't know

Operating system

Edition: Windows 11 Pro
Version:22H2
OS build:22621.1265 Experience Windows Feature Experience Pack 1000.22638.1000.0

Additional context

Tested using: NVDA 2022.4 (2022.4.0.27401), JAWS 2023, Narrator

[zacjansheski]

Similar issue
#17922

Works as desired in Mac OS with VoiceOver. Does not work as desired in Windows with Narrator or NVDA