Restore last open playlists in correct order

app/ds.py

@@ -529,7 +529,7 @@ def _playlists_where(
         Playlists.id.label("playlist_id"),
         Playlists.name,
         Playlists.open,
-    ).where(query)
+    ).where(query).order_by(Playlists.tab)
 
     results: list[PlaylistDTO] = []
 
@@ -681,7 +681,7 @@ def playlist_mark_status(playlist_id: int, open: bool) -> None:
             .values(open=open)
         )
 
-    session.commit()
+        session.commit()
 
 
 # @log_call
@@ -796,7 +796,7 @@ def playlist_rename(playlist_id: int, new_name: str) -> None:
             .values(name=new_name)
         )
 
-    session.commit()
+        session.commit()
 
 
 def playlist_row_count(playlist_id: int) -> int:

app/playlistrow.py

@@ -214,8 +214,10 @@ class PlaylistRow:
 
     @row_number.setter
     def row_number(self, value: int) -> None:
-        # This does not update the database which must take place
-        # elsewhere
+        # This does not update the database. The only times the row
+        # number changes are 1) in ds._playlist_check_playlist and
+        # ds.playlist_move_rows, and in both those places ds saves
+        # the change to the database.
         self.dto.row_number = value
 
     def check_for_end_of_track(self) -> None: