fix(kded): center action OSD on wayland
Summary:
Currently on Wayland the Action OSD is not centered on the screen.
On Wayland we will center it on m_output (laptop, with fallback to primary and
then to first one).
X behavior is not changed.
BUG: 397586
Reviewers: romangg, davidedmundson
Reviewed By: romangg, davidedmundson
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D28916