feat(TFA): enhance TFA navigation logic to check for method availability

Author: mjabascal10

frontend/src/app/shared/components/auth/login/login.component.ts

@@ -137,7 +137,7 @@ export class LoginComponent implements OnInit {
           this.startLogin = false;
           this.spinner.show();
           this.startNavigation();
-        } else if (data.tfaRequired) {
+        } else if (data.tfaRequired && !!data.method ) {
           this.spinner.show();
           this.router.navigate(['/totp'])
             .then(() => this.spinner.hide());