closing the window will cancel implicitly

src/main/java/org/cryptomator/ui/keyloading/hub/RegisterDeviceController.java

@@ -81,7 +81,7 @@ public class RegisterDeviceController implements FxController {
 
 	private void registrationSucceeded(HttpResponse<Void> voidHttpResponse) {
 		LOG.info("Registered!");
-		result.cancel(true); // TODO: show visual feedback "please wait for device authorization"
+		window.close(); // TODO: show visual feedback "please wait for device authorization"
 	}
 
 	private Void registrationFailed(Throwable cause) {