Disables carousel when new chat page is loading (#3506)

* Disables carousel when new chat page is loading

* simplify

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Co-authored-by: ggurdin <ggurdin@gmail.com>

lib/pages/new_group/new_group_view.dart

@@ -180,7 +180,8 @@ class NewGroupView extends StatelessWidget {
                 padding: const EdgeInsets.symmetric(horizontal: 24.0),
                 child: ActivitySuggestionCarousel(
                   onActivitySelected: controller.setSelectedActivity,
-                  enabled: controller.nameController.text.isNotEmpty,
+                  enabled: controller.nameController.text.isNotEmpty &&
+                      !controller.loading,
                   selectedActivity: controller.selectedActivity,
                   selectedActivityImage: controller.selectedActivityImage,
                 ),