majak: Exclude default from sites list

tuning/views.py

@@ -11,6 +11,7 @@ class SitesListView(TemplateView):
         context = super().get_context_data(**kwargs)
         sites = list(
             Site.objects.exclude(hostname__contains=".pir-test.eu")
+            .exclude(hostname="default")
             .select_related("root_page")
             .order_by("root_page__title")
         )