chore(i18n): sync adminfront locales with new keys

- Adminfront 화면에 표시될 한국어/영어 문구(테넌트 검색, 총 n개 로그 등) 추가

backend/cmd/server/headless_login_e2e_test.go

@@ -542,3 +542,7 @@ func TestHeadlessPasswordLogin_E2E_AcceptsConfiguredPublicHTTPSAudience(t *testi
 		t.Fatalf("did not expect audience mismatch log, got=%s", output)
 	}
 }
+
+func (m *e2eMockKratosAdminService) CreateUser(ctx context.Context, user *domain.BrokerUser, password string) (string, error) {
+	return "", nil
+}