fix(institution): [DLCM-2532] allow members without role to see other members with role
requested to merge fpo/2532_able_to_see_other_members_of_an_instituiton_just_by_being_member_without_role into master
https://issues.unige.ch/browse/DLCM-2532
Can be tested with dlcm/ui/dlcm-portal!583 (merged)