Port Timer objects away from adjustable-duration intervals where needed
requested to merge ngraham/plasma-desktop:dont-hide-overlay-too-early-with-disabled-animations into master
A Timer's interval value should only use a standard duration unit that adjusts with the user's chosen animation speed if it controls a visible animation. Otherwise the interval will get scaled inappropriately and weird things will happen.
For Timers where the duration should not scale, we should either use a
hardcoded value appropriate to the use case (if it needs to be short or
match something else) or else use Kirigami.Units.humanMoment, which
is 2 seconds long and targets this use case.
Several timers in this repo don't conform to those rules; port them to the appropriate thing.
BUG: 500717 FIXED-IN: 6.3.3
Edited by Nate Graham