Revert "Revert this part of previous commit"

This reverts commit 00be4e2b.

This makes Skanpage not launch anymore:
```
QQmlApplicationEngine failed to load component
qrc:/qml/MainWindow.qml:362:5: Type ShareWindow unavailable
qrc:/qml/ShareWindow.qml:109:25: Cannot override FINAL property
```

The issue will have to be fixed in a different way. And please make
sure you're testing changes your by at least make sure the app still
launches.

CCMAIL: montel@kde.org