Split 'due' translation in deck browser

ftl/core/decks.ftl

@@ -31,3 +31,5 @@ decks-study-deck = Study Deck
 decks-filtered-deck-search-empty = No cards matched the provided search. Some cards may have been excluded because they are in a different filtered deck, or suspended.
 decks-unmovable-cards = Show any excluded cards
 decks-learn-header = Learn
+# The count of cards waiting to be reviewed
+decks-review-header = Due

qt/aqt/deckbrowser.py

@@ -199,7 +199,7 @@ class DeckBrowser:
             tr.decks_deck(),
             tr.actions_new(),
             tr.decks_learn_header(),
-            tr.statistics_due_count(),
+            tr.decks_review_header(),
         )
         buf += self._topLevelDragRow()