Tiny tweaks

src/main/resources/content/lang/de_de.lang

@@ -9,6 +9,7 @@ game.trash = M\u00fclltonne
 game.trash.hover = Zerst\u00f6ren
 game.storage = Lager
 game.storage.empty = Leer
+game.balance = Bilanz
 game.balance.history = Buchungen
 game.balance.history.no-data = Noch keine Buchungen
 game.balance.history.index =