* initial work on maintaining playout state * debugging wip * fix refresh playout logic * fix failing test * more fixes * update changelog * comment out some debug logs * comment out more logs
* re-namespace * optimize usings * more usings * more of the same * more implicit/global usings * cleanup all usings * minor fixes
* first pass at adding song libraries * start handling optional video * fix song playback * fix song transitions * add songs page to UI