Change useUserTenantPermissions to return permissions from _self endpoints

Tested on https://bugfest-ramsons-consortium.int.aws.folio.org/, https://eureka-bugfest-ramsons-consortium.int.aws.folio.org/ - works as expected

• users-keycloak/_self calls are made for each tenant on Eureka

• bl-users/_self calls are made for each tenant on Okapi

See examples:

Hi , with the issues described in I’d like to ask to review this ticket as well, so that new approach doesn’t break functionality in Sunflower release

Re-tested on https://folio-etesting-snapshot-consortium.ci.folio.org/, https://folio-testing-sprint-cs00000int.ci.folio.org/ - works as expected

Testing approach suggested by Aidyn.

When viewing shared instance records in Inventory on Central, Member tenants:

• users-keycloak/_self calls are made for each tenant on Eureka

• bl-users/_self calls are made for each tenant on Okapi

See examples:

Tested on https://folio-etesting-snapshot-consortium.ci.folio.org/ - issue found

When opening a shared instance for view, users-keycloak/_self call is being made but it yields 404 response with such body:

See examples:

Please note the error pop-ups and other failed requests in the video are due to

- please review/fix

This ticket should solve EUREKA-137 issue, specifically first case in the ticket