applets/kickoff: fix crash when dragging items not in favorite page on Wayland
Replace all !plasmoid.expanded with plasmoid.expanded so the source
item can still be alive after Kickoff menu is closed
BUG: 449426 BUG: 450215 FIXED-IN: 5.24.7
Best with qt/qt/qtwayland!55 (merged)
Edited by Fushan Wen