Port applets to use PlasmaExtras.PlaceholderMessage

Nate Grahamrequested to merge
ngraham/plasma-workspace:port-to-plasmaextras-placeholdermessage into master

The Kirigami version uses QQC2 elements which don't respect the plasma theme and color scheme, leading to thing slooking out of place especially when using a dark color theme or scheme.

Depends on https://invent.kde.org/frameworks/plasma-framework/-/merge_requests/13

Please do not squash when merging.

Edited by Nate Graham

Merge request reports