[FEAT]: Add Blocked Track Into Queue When User Unblocks It

[cdrani]

Implement

ONLY IF IN CURRENT QUEUE

User blocks track

1. Save the metadata for the track if in Spotify's queue (next_tracks array)
2. Save the metadata for the track above it (if applicable), otherwise the track above it is the Now Playing track.

User unblocks same track

1. Check saved metadata for above
   • if found, find index of the the track above in next_tracks, and insert freshly unblocked track metadata after it
   • if not found, the track above is Now Playing, so insert freshly ublocked track at top of next_tracks
2. POST updated next_tracks to spotify