add migration to drop album and artist tables

app/migrations/__preinit/__init__.py

@@ -2,6 +2,8 @@
 Pre-init migrations are executed before the database is created.
 Useful when you need to move files or folders before the database is created.
 
+`Example use cases: Moving files around, dropping tables, etc.`
+
 PLEASE NOTE: OLDER MIGRATIONS CAN NEVER BE DELETED.
 ONLY MODIFY OLD MIGRATIONS FOR BUG FIXES OR ENHANCEMENTS ONLY.
 [TRY NOT TO MODIFY BEHAVIOR, UNLESS YOU KNOW WHAT YOU'RE DOING].
@@ -11,9 +13,10 @@ from sqlite3 import OperationalError
 from app.db.sqlite.migrations import MigrationManager
 from app.logger import log
 
+from .drop_artist_and_album_color_tables import DropArtistAndAlbumColorTables
 from .move_to_xdg_folder import MoveToXdgFolder
 
-all_preinits = [MoveToXdgFolder]
+all_preinits = [MoveToXdgFolder, DropArtistAndAlbumColorTables]
 
 
 def run_preinit_migrations():