fix #29841: Exported instrument changes sounds well
The screen-reader will now also tell the menu's default shorcut keys,
when it is selected.

For example instead of "File" it will now say "File Alt+F".
fix #29901: cursor left in note input mode
Merge pull request #1157 from MarcSabatella/29901-left-cursor

fix #29901: cursor left in note input mode
Merge pull request #1156 from andreituicu/accessible-menus

Accessible Menus
fix #23030 : Missing action buttons in TextEditor

Is now able to cancel editing. And closing TextEditor
with X clears any modifications, which is most intuitive.
fix #29886
Merge pull request #1159 from Soerboe/23030_Missing.action.buttons.on.TextEditor

fix #23030 : Missing action buttons in TextEditor
Merge pull request #1151 from Igevorse/instrument-change

fix #29841: Exported instrument changes sound well
fix #29736
fix #28336: Sending 'program change' message to JACK MIDI Out