[FR]: SignOut in multidevice

### Description

* User wants to delete the account
* The account deletion process is made on the server side because needs time.
* At that moment, the deletion account starts, and in X days, if the user doesn't log in again, the account will be deleted.

So this process should start with logging out of all devices to prevent undesirable activity.

Is there any way to do that from the app SDK?

### API Proposal

_No response_

### Firebase Product(s)

Authentication