update carton and add staff name

lib/domain/vo/shipment_status.dart

@@ -4,14 +4,18 @@ class ShipmentStatus {
   String status;
   DateTime date;
   bool done;
-  ShipmentStatus({this.status, this.date, this.done});
+  String staffId;
+  String staffName;
+  ShipmentStatus(
+      {this.status, this.date, this.done, this.staffId, this.staffName});
 
   factory ShipmentStatus.fromMap(Map<String, dynamic> map) {
     var _date = (map['date'] as Timestamp);
     return ShipmentStatus(
-      status: map['status'],
-      date: _date == null ? null : _date.toDate(),
-      done: map['done'],
-    );
+        status: map['status'],
+        date: _date == null ? null : _date.toDate(),
+        done: map['done'],
+        staffId: map['staff_id'],
+        staffName: map['staff_name']);
   }
 }