The detail header overflowed the items column. Make the secondary actions icon-only
with tooltips (Sync/Export, Reset to YouTube, Delete) keeping only Play all labeled;
replace the long 'Unsynced changes' / 'Synced from YouTube' chips with a compact
accent 'Unsynced' dot (tooltip explains). Add an open-on-YouTube external-link button
next to the name + edit pencil (tooltip), shown for any YouTube-linked playlist.