ui improvements in lyrics screen
animated bars when track is playing
fix back button when player screen is open
instantly pop when track is changed in queue list
use get_url api by default, and fall back to old generation if get_url failed
start to write a better cachemanager to implement in all systems
write in more appropriate directories on windows and linux
improve check for Connectivity by adding a fallback (needed for example on linux systems without NetworkManager)
allow to dynamically change track quality without rebuilding the object
Pato05