Sample App: support userId

[devcsomnicg]

Description

• Release Notes

We have successfully implemented support for the userId in Sample App for both JavaScript and TypeScript Apps.

• Test Steps

1. Run the Sample App.
2. Navigate to the Settings tab.
3. Locate the field for entering email/userId.
4. Enter the appropriate value and press the login button.
5. Verify that the email/userId is displayed as the user.
6. Click the Logout button.
7. Confirm that the field for entering email/userId is visible again.

[hani-iterable]

I closed this fork branch PR since we have created it from the main repo branch.