QDS should be updated to use the latests QQEM (0.41).

Few notes:

• QQEM tags format has changed from "//" to "@" (QTBUG-107869), so newer projects don't work correcly with older QQEM.
• I think QDS version with patch https://codereview.qt-project.org/c/qt/qtquickeffectmaker/+/438159 had issue with copying BlutHelper files when exporting. Not sure about this but seemed to notice that when testing the patch, please check.
• Also check how preview sources (toolbar dropdown menu with Qt logo) behaves, I got same items multiple times there but that was maybe because multiple QQEM install directories. Edit -> Preferences menu contains now "Refresh" button which should remove all missing files, please check that it works also with QDS version.
• Contains some other improvements also like handlind node dependencies better QTBUG-107839.