Dock buttons, running-app icons, and favourite delegates had no
mouse-over feedback. Add 3-state highlight backgrounds (hover
and press), Kirigami.Icon active state, and tooltips following
existing Plasma patterns. Favourite delegate hover is gated on
convergence mode to avoid overlap with touch press events.
This refactors the homescreen state object to isolate drag & drop from
swipe states, allowing for using proper system-level drag & drop for delegate
movement. This then ports the new applet list to use it.
This converts many of the animation durations to Kirigami units so that
they can be controlled system wide. It also speeds up several of the
animation durations (ex. in folio) from 800ms to 400ms to improve the
feel and responsiveness of the shell.
Apparently i18n doesn't support string literals with single quotes as
parameters. Fix occurrences of this and add a CI check to ensure this
won't happen in the future.
