Updating plugins for MuseScore Studio 4.4

MuseScore Studio 4.4 uses basically the same plugin framework as 4.3 and before, but some slight changes were inevitable.

Muse(Score) modules

Some imports have been renamed:

Before	After
MuseScore.Ui	Muse.Ui
MuseScore.UiComponents	Muse.UiComponents

Qt modules

Since MuseScore Studio has switched to Qt 6, the long-deprecated QtQuick.Controls 1 module has been removed. Use the QtQuick.Controls 2 module instead; documentation can be found on the Qt website. Another alternative would be to use Muse.UiComponents, although these have a less stable API and no documentation other than MuseScore Studio's own source code.

Examples

For inspiration, you can look how we updated the "built-in" plugins for Qt 6: https://github.com/musescore/MuseScore/commits/7fe32bacbc9287b716d40462afb713da52bbde97/share/plugins?since=2024-02-20&until=2024-02-21