Support unicode braille input

Your idea

It is really interesting to see the new braille input mode in MuseScore 4.2. A change which might be not that difficult to add is support for unicode braille input.

Example workflow:

1. In NVDA's braille settings, as the input braille table, select Unicode braille input
2. When in note input mode, start typing braille from a braille display, either in the braille panel or just in the default score view.

Problem to be solved

Being able to input notes without removing your hands from a braille display

Prior art

No response

Additional context

NVDA should inject braille input with SendInput, so MuseScore should receive the raw unicode braille characters.