fix new cards not appearing in correct order in v3

This was broken by an SQLite upgrade - previously we received the rows
in ix_cards_sched order, but recent versions use a table scan for that
query when the order is unspecified. Solved by being explicit about the
order we expect results to arrive.

https://forums.ankiweb.net/t/skipping-new-cards/15410

rslib/src/storage/card/new_cards.sql

@@ -7,3 +7,6 @@ SELECT id,
 FROM cards
 WHERE did = ?
   AND queue = 0
+ORDER BY did,
+  queue,
+  due