Fix handling of URLs and internal play state propagation
List hardcoded songs in a playlist
add new route to create playlist

initial work for playlist db connection
Move playlist operations into app-navigation instead of a new view
Remove unused API stuff
Create a proper playlist API
draft of an edit input for playlist
small CSS fixes
improve playlist API
add example how to add a playlist
lets startover with new api :)
new method to remove playlists
minor updates for the new api