Instead of following an individual versioning scheme, we should make all QML imports that are part of Qt modules available under X.<QT_MINOR_VERSION>.
For the reasoning, see also https://quips-qt-io.herokuapp.com/quip-0099-qml-versioning.html .
This is a change that already got started in 5.12, but not all modules have done the switch yet.
In practice, this means
Auto-register the import version in the C++ plugin:
set IMPORT_VERSION in the plugins' .pro file:
and adapting the documentation: