✨(backend) add async triggers to enable document indexation with find

On document content or permission changes, start a celery job that will call the
indexation API of the app "Find".

Signed-off-by: Fabre Florian <ffabre@hybird.org>

src/backend/core/api/viewsets.py

@@ -1078,6 +1078,11 @@ class DocumentViewSet(
             {"id": str(duplicated_document.id)}, status=status.HTTP_201_CREATED
         )
 
+    # TODO
+    # @drf.decorators.action(detail=False, methods=["get"])
+    # def search(self, request, *args, **kwargs):
+    #    index.search()
+
     @drf.decorators.action(detail=True, methods=["get"], url_path="versions")
     def versions_list(self, request, *args, **kwargs):
         """