fix: click on video playlist won't load if autoplay is off on backgro…

…und mode (#6589)

* fix: click on video playlist won't load if autoplay is off on background mode

* refactor: click on video playlist won't load if autoplay is off on background mode

app/src/main/java/com/github/libretube/services/OnlinePlayerService.kt

@@ -356,7 +356,7 @@ class OnlinePlayerService : LifecycleService() {
 
  saveWatchPosition()
 
- if (!PlayerHelper.isAutoPlayEnabled(playlistId != null)) return
+ if (!PlayerHelper.isAutoPlayEnabled(playlistId != null) && nextId == null) return
 
  val nextVideo = nextId ?: PlayingQueue.getNext() ?: return