Respect reduced motion and animate-sidebar in compact mode

[sjwall]

Currently the compact mode is not respecting the system reduced motion setting.

This PR adds overrides to transition to disable animations when prefers-reduced-motion is set and for the sidebar it also overrides when zen.view.compact.animate-sidebar is set to false

I have noticed some other places that need reduced motion handling and can update those in follow up PRs if happy with how this change works

[mr-cheffy]

Framer already respects motion preferences though

[JSGRD22]

#5048

[sjwall]

Framer already respects motion preferences though

That's my understanding as well. It looks like these animations are CSS rather than Framer. I tested by removing all the transition from zen-compact-mode.css and the animations didn't happen, regardless of motion preference

CSS being used rather than Framer is also shown by the zen.view.compact.animate-sidebar config option. In the Framer animation code it is used to disable the animation but changing this value doesn't stop the animation

I don't know the zen code well enough yet to understand the usage of Framer vs CSS