set the display name of federated sharees from addressbook

apps/federatedfilesharing/tests/AddressHandlerTest.php

...haring/tests/Controller/MountPublicLinkControllerTest.php

...federatedfilesharing/tests/FederatedShareProviderTest.php

apps/files_sharing/tests/External/CacheTest.php

apps/files_sharing/tests/External/ManagerTest.php

lib/private/Federation/CloudId.php

lib/private/Federation/CloudIdManager.php

lib/private/Server.php

tests/lib/Collaboration/Collaborators/MailPluginTest.php

tests/lib/Collaboration/Collaborators/RemotePluginTest.php

tests/lib/Federation/CloudIdManagerTest.php