BE integration: FOLIO to INN-Reach Locations Settings Should Group Mappings by INN-Reach Agency

To prevent INN-Reach locations from being assigned to locations in more than one agency, the rest of the agencies must be checked. To do this, we need to make a request for each library location-mappings. The number of requests will depend on the number of libraries. Change the UI implementation to get data for all libraries in one request after implementing