move bill to to cartion size widget

lib/pages/carton/carton_editor_for_package.dart

@@ -26,9 +26,12 @@ import 'package_selection_widget.dart';
 class CartonEditorForPackage extends StatefulWidget {
   final User sender;
   final User consignee;
-  final String billToValue;
+  
   const CartonEditorForPackage(
-      {Key? key, required this.sender, required this.consignee, required this.billToValue})
+      {Key? key,
+      required this.sender,
+      required this.consignee,
+      })
       : super(key: key);
 
   @override
@@ -54,6 +57,8 @@ class _CartonEditorForPackageState extends State<CartonEditorForPackage> {
   double _height = 0;
 
   String _selectedDeliveryType = delivery_caton;
+  String _billToValue = billToSender;
+
   FcsShipment? _shipment;
   String _cartonSizeType = standardCarton;
   CartonSize? _standardSize;
@@ -131,6 +136,7 @@ class _CartonEditorForPackageState extends State<CartonEditorForPackage> {
       return Expanded(
           child: CartonSizeWidget(
         deliveryType: _selectedDeliveryType,
+        billType: _billToValue,
         sender: widget.sender,
         consignee: widget.consignee,
         shipment: _shipment,
@@ -142,10 +148,11 @@ class _CartonEditorForPackageState extends State<CartonEditorForPackage> {
         onPrevious: () {
           Navigator.pop(context);
         },
-        onContinue: (deliveryType, shipment, cartonSizeType,
+        onContinue: (deliveryType,billType ,shipment, cartonSizeType,
             {standardSize, length, width, height}) {
           setState(() {
             _selectedDeliveryType = deliveryType;
+            _billToValue = billType;
             _shipment = shipment;
             _cartonSizeType = cartonSizeType;
             _standardSize = standardSize;
@@ -205,7 +212,7 @@ class _CartonEditorForPackageState extends State<CartonEditorForPackage> {
         child: CartonSubmit(
           sender: widget.sender,
           consingee: widget.consignee,
-          billToValue: widget.billToValue,
+          billToValue: _billToValue,
           cartonSizeType: _cartonSizeType,
           standardSize: _standardSize,
           length: _length,