Use wake lock whenever casting

[sentriz]

hi! thanks for the efforts here. wondering if we could get daneren2005#1151 from @brian-doherty in

and maybe see if could be applied to a situation where playback stops when locking the screen in the middle of a playlist (or at least when playing a track from the starred list) - if it's the same issue

thanks!

[sentriz]

ah I don't think it is the same issue. the one I was talking about is daneren2005#1165