Fix manager condition in stakeholder service method.

src/main/java/eu/dnetlib/uoamonitorservice/service/StakeholderService.java

@@ -36,7 +36,7 @@ public class StakeholderService {
                             || stakeholder.getVisibility() == Visibility.RESTRICTED))
                     || rolesUtils.isPortalAdmin()
                     || rolesUtils.isCurator(stakeholder.getType())
-                    || rolesUtils.isManager(stakeholder.getType(), stakeholder.getId()))
+                    || rolesUtils.isManager(stakeholder.getType(), stakeholder.getAlias()))
                 .collect(Collectors.toList());
     }
 }