add carton editor to update

lib/pages/carton/carton_submit.dart

@@ -35,6 +35,7 @@ class CartonSubmit extends StatelessWidget {
   final List<CargoType> surchareItems;
   final OnCreateCarton? onCreate;
   final OnPrevious? onPrevious;
+  final bool isNew;
   const CartonSubmit(
       {Key? key,
       required this.sender,
@@ -51,7 +52,8 @@ class CartonSubmit extends StatelessWidget {
       this.width = 0,
       this.height = 0,
       this.cargoTypes = const [],
-      this.surchareItems = const []})
+      this.surchareItems = const [],
+      this.isNew = true})
       : super(key: key);
 
   @override
@@ -310,7 +312,8 @@ class CartonSubmit extends StatelessWidget {
               mainAxisAlignment: MainAxisAlignment.center,
               children: <Widget>[
                 Flexible(
-                  child: LocalText(context, 'box.crete.carton',
+                  child: LocalText(
+                      context, isNew ? 'box.crete.carton' : "box.update.btn",
                       color: Colors.white, fontSize: 15),
                 ),
                 const SizedBox(width: 5),