Issue description:
I have many playlists and like how symfonium imports and auto-syncs my read-only navidrome playlists, however I have been finding that i sometimes want to clear all symfonium playlists and re-import (currently that creates duplicates). maybe im blind, but i could not find a way to select (and delete) multiple playlists. i ended up manually deleting each one by one with the 3 dot menu. Am i missing something super obvious here?