signInUserWithQrCode method lacks manual abort functionality

[johnhom1024]

I'm currently working with the gramjs project and have encountered an issue with the signInUserWithQrCode method.
The signInUserWithQrCode method is designed to handle the process of signing in a user using a QR code. However, it appears that there is no way to manually pause this process. In some real-world scenarios, users might need to interrupt the QR code signing-in process due to various reasons, such as a sudden change in network conditions, or they might have found an alternative way to log in.

The lack of a manual pause feature not only limits the flexibility of the user experience but also poses potential risks

I believe that adding a manual pause functionality to the signInUserWithQrCode method would significantly enhance the usability.

Here is my example code to manualy abort:

  const abortPromise = new Promise((resolve, reject) => {
   // add abortEmitter param to listen abort event
    authParams?.abortEmitter.on("abort", () => {
          reject("Aborted")
      });
  });

  try {
      await Promise.race([updatePromise, inputPromise, abortPromise]);
  } catch (err) {
      throw err;
  } finally {
      isScanningComplete = true;
  }