initial work for packaging on Windows
fix #30066: Fret mark pastes on highest string
fix #30086: 'Hide instrument name if there is only 1 instrument' broken
Fixes to Guitar Pro 4 and 5 implementations.
simplify MuseScore connect
Merge pull request #1176 from jpirie/guitar-pro-import

Fixes to Guitar Pro 4 and 5 implementations.
add more text symbols & shortcuts
fix #29981: shortcuts for key sig, time sig, & symbols palettes