RBAC: Add userLogin filter to the permission search endpoint (#81137)

* RBAC: Search add user login filter

* Switch to a userService resolving instead

* Remove unused error

* Fallback to use the cache

* account for userID filter

* Account for the error

* snake case

* Add test cases

* Add api tests

* Fix return on error

* Re-order imports

pkg/services/extsvcauth/oauthserver/oasimpl/service_test.go

@@ -83,7 +83,7 @@ func setupTestEnv(t *testing.T) *TestEnv {
 		cache:         localcache.New(cacheExpirationTime, cacheCleanupInterval),
 		cfg:           cfg,
 		accessControl: acimpl.ProvideAccessControl(cfg),
-		acService:     acimpl.ProvideOSSService(cfg, env.AcStore, localcache.New(0, 0), fmgt),
+		acService:     acimpl.ProvideOSSService(cfg, env.AcStore, localcache.New(0, 0), env.UserService, fmgt),
 		memstore:      storage.NewMemoryStore(),
 		sqlstore:      env.OAuthStore,
 		logger:        log.New("oauthserver.test"),