Fixed CircularProgressIndicator color and position show in notification

lib/views/notification/pages/t_notification_page.dart

@@ -96,16 +96,27 @@ class _TabletNotificationPageState extends State<TabletNotificationPage>
                 ),
               ),
               SizedBox(height: 12.0.h()),
-              Expanded(
-                child: TabBarView(
-                  controller: controller,
-                  children: const [
-                    NotificationAllTab(),
-                    NotificationUnreadTab(),
-                    NotificationImportantTab(),
-                  ],
+              viewModel.isLoading
+                  ? Container()
+                  : Expanded(
+                    child: TabBarView(
+                      controller: controller,
+                      children: const [
+                        NotificationAllTab(),
+                        NotificationUnreadTab(),
+                        NotificationImportantTab(),
+                      ],
+                    ),
+                  ),
+              if (viewModel.isLoading) ...[
+                const Spacer(),
+                const Center(
+                  child: CircularProgressIndicator(
+                    color: AppColors.secondary50,
+                  ),
                 ),
-              ),
+                const Spacer(),
+              ],
               SizedBox(height: 10.0.h()),
               Row(
                 children: [