✨(backend) Order pinned documents by last updated at

Sort favorite_list results by updated_at property descending.
    
Signed-off-by: Paul Vernin <paul.vernin@gmail.com>

src/backend/core/api/viewsets.py

@@ -834,6 +834,7 @@ class DocumentViewSet(
         queryset = self.queryset.filter(path_list)
         queryset = queryset.filter(id__in=favorite_documents_ids)
         queryset = queryset.filter(ancestors_deleted_at__isnull=True)
+        queryset = queryset.order_by("-updated_at")
         queryset = queryset.annotate_user_roles(user)
         queryset = queryset.annotate(
             is_favorite=db.Value(True, output_field=db.BooleanField())