Add two title-adjacent icon buttons to the external-reco Weekly
Exploration and Weekly Jams rows: add the whole backing track list to the
queue, or create a playlist from it (reusing the add-to-playlist picker
from the queue save-as-playlist work, P6). SlimCarousel gains an opt-in
show-list-actions + list-action callback (default off, so the shared
recent/popular rows are unchanged); external_reco::list_track_ids reads
the row's backing ids; playback::enqueue_track_ids resolves + enqueues
them; a new ("ext-reco-list", _) media-action routes both.
cc
vicrodh
2d7232d4e7