Avoid duplicating a process elements in the pagination

arkindex/dataimport/api.py

@@ -966,4 +966,4 @@ class ListProcessElements(ListAPIView):
         if dataimport.mode not in (DataImportMode.Elements, DataImportMode.Workers):
             return Element.objects.none()
 
-        return self.retrieve_elements(dataimport).order_by('name')
+        return self.retrieve_elements(dataimport).order_by('id')