Fix playlist order between "Bookmarked Playlists" list

..add to playlist" dialog list. Now both lists are sorted using case insensitive order if the user has not yet adjusted manually the order.
Author: @nicholasala

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistStreamDAO.java

@@ -154,6 +154,6 @@ default Flowable<List<PlaylistStreamEntity>> listByService(final int serviceId)
             + " AND :streamUrl = :streamUrl"
 
             + " GROUP BY " + JOIN_PLAYLIST_ID
-            + " ORDER BY " + PLAYLIST_DISPLAY_INDEX)
+            + " ORDER BY " + PLAYLIST_DISPLAY_INDEX) + ", " + PLAYLIST_NAME)
     Flowable<List<PlaylistDuplicatesEntry>> getPlaylistDuplicatesMetadata(String streamUrl);
 }