Reorder cards according to default group order when deleting options group

Use the correct ordering of the default options group when deleting a group.

On another note, deleting an options group calls modSchema. Right now, there's no warning that a full sync is needed when doing so. I could easily add another line in the dialog saying so, but I wonder if there is a better way that can get triggered every time modSchema is called from anywhere in the application, much like the desktop client.