Add a button-activated preview popup for playlist entries, so users can view and seek through an upcoming entry in any playlist (theirs, another user's, or the shared playlist). The main media being played should automatically mute, but not stop playing (if this is possible, if not, stop it and auto-start it again at the correct time after preview stops). The preview popup should automatically dismiss if a user clicks outside of the popup.
Add a button-activated preview popup for playlist entries, so users can view and seek through an upcoming entry in any playlist (theirs, another user's, or the shared playlist). The main media being played should automatically mute, but not stop playing (if this is possible, if not, stop it and auto-start it again at the correct time after preview stops). The preview popup should automatically dismiss if a user clicks outside of the popup.