update carton and add staff name

lib/pages/widgets/status_tree.dart

@@ -54,6 +54,7 @@ class StatusTree extends StatelessWidget {
                   e.done || isPacked
                       ? Text(dateFormatter.format(e.date))
                       : Container(),
+                  e.staffName == null ? Container() : Text(e.staffName)
                 ],
               ),
             ),