TimelineQueueNavigator.getSupportedQueueNavigatorActions() ignores shuffle

[kkuepper]

Currently getSupportedQueueNavigatorActions() does not take into account if shuffle is enabled or not. That leads to that ActionSkipToNext or ActionSkipToPrevious is disabled in wrong situations.

Reproduction steps

• play a list of tracks
• enable shuffle
• skip to next track until you hit the latest item the list
  -> ActionSkipToNext is disabled even though not all songs have been shuffled through

[ojw28]

This will be fixed in 2.9.1.