Expose transientFor and only blur underneath when transientParent is dock
This exposes transientFor in the EffectsWindow, and then only blurs underneath if transientParent is a dock.
Depends on https://invent.kde.org/frameworks/plasma-framework/-/merge_requests/7
Fixes https://bugs.kde.org/show_bug.cgi?id=415846
Before:
After:
Edited by Niccolò Venerandi