permissions: add grant "manage" permission

* closes inveniosoftware/invenio-rdm-records#1671

site/zenodo_rdm/permissions.py

@@ -59,7 +59,7 @@ class ZenodoRDMRecordPermissionPolicy(RDMRecordPermissionPolicy):
     can_manage = [
         IfRecordManagementAllowedForCommunity(
             then_=RDMRecordPermissionPolicy.can_manage,
-            else_=[RecordOwners(), SystemProcess()],  # hide from community curators
+            else_=[RecordOwners(), AccessGrant("manage"), SystemProcess()],  # hide from community curators
         )
     ]
     can_curate = can_manage + [AccessGrant("edit"), SecretLinks("edit")]