Update translation templates

mods/default/locale/default.it.tr

@@ -11,6 +11,7 @@ Contents:=
 Save=
 by @1=
 Page @1 of @2=
+The book you were writing to mysteriously disappeared.=
 "@1" by @2="@1" di @2
 Blueberries=Mirtilli
 Book=Libro