New AmpliPi Software Release 0.4.11

Some more detail on those upcoming volume changes that can be hard to glean from just the active PR:

Before:
vol-before

After:
vol-after

Volumes will retain relativistic positioning when surpassing the min or max positions when using the all-volume slider on a given stream. Groups retain their authoritative volume control, and you can still change zones directly as always.

This change is undergoing testing and awaiting user caches to expire before full release.