Support screenreaders other than NVDA
Most of the MuseScore UI is accessible at this point, but the reading of the scoreview only works with NVDA. The reasons for this are not entirely clear as there are many variables at play here. But there are things we can do to improve the ability of other screenreaders to read the score. This is issue is intended as a general catchall for the most important issues. I intend to submit a PR addressing these, and at that point there will no doubt be individual issues specific to each screenreader and particular aspects. We can track those specific issues separately once the major blockers are addressed.