add pagination for pages

lib/pages/pickup/model/pickup_model.dart

@@ -13,29 +13,18 @@ import 'package:path/path.dart' as Path;
 
 class PickupModel extends BaseModel {
   final log = Logger('PickupModel');
-
   PaginatorListener<Pickup>? pickups;
 
   void initUser(user) {
     super.initUser(user);
   }
 
-  void privilegeChanged() {
-    if (user != null) {
-      _initData();
-    }
-  }
-
-  Future<void> _initData() async {
-    _loadPaginationPickups();
-  }
-
   @override
   logout() async {
     if (pickups != null) pickups!.close();
   }
 
-  _loadPaginationPickups() {
+  loadPaginationPickups() {
     if (user == null) return;
     String path = "/$pickup_collection";
     Query col = FirebaseFirestore.instance.collection(path);