Adding the play-button overlay in the previous commit pushed
PlaylistCard from 49 to 62 lines, two over detekt's 60-line cap.
Splitting the cover stack into its own private composable
(PlaylistCardCover) brings the outer function back under the limit
while keeping the call site readable.
Behavior identical to f17610ec; pure refactor for lint compliance.
bvandeusen
741ce1fa07