feat(server): Add publicUsers toggle for user search (#14330)

* feat(server): Add publicUsers toggle for user search

* tests

* docs: add check:typescript for web PR checklist

* return auth.user when publicUsers is false - app testing

---------

Co-authored-by: Alex <alex.tran1502@gmail.com>

server/src/services/server.service.spec.ts

@@ -169,6 +169,7 @@ describe(ServerService.name, () => {
         isInitialized: undefined,
         isOnboarded: false,
         externalDomain: '',
+        publicUsers: true,
         mapDarkStyleUrl: 'https://tiles.immich.cloud/v1/style/dark.json',
         mapLightStyleUrl: 'https://tiles.immich.cloud/v1/style/light.json',
       });