Add onLogoutPreviousUserFailed delegate to the IterableAuthDelegate

[woosiki-prestolabs]

🔹 Jira Ticket(s)

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✏️ Description

I am a iOS software engineer at PrestoLabs and was asked by Daryl Greaves to make a PR what I requested specifications.
I requested the specifications below but I only made this PR for 3rd one.

1. Can I use disableDeviceForAllUsers when I set autoPushRegistration as true?

• I got a response that I can use disableDeviceForAllUsers.

2. Could you make a patch that retry register api when it failed by network error?

• I found a onFailure callback when register api was failed.
• IterableAPI.register(token: Data, , onSuccess: OnSuccessHandler? = nil, onFailure: OnFailureHandler? = nil)

3. Could you make a patch that notify when unregister device failed by 401 error?

[woosiki-prestolabs]

I have a question about function of disableDeviceForAllUsers.
I call this when jwt token already disabled, but it still fail as {"msg":"JWT Authorization header is not set","code":"BadAuthorizationHeader","params":null}.
Did you know how I can disable device for all users when user already logged out?

[jena-chakour]

Hey @woosiki-prestolabs thanks for surfacing this-- at this time, the disableDevice call no longer requires a JWT token, so we should be able to avoid this scenario. If you are still noticing issues with the disableDevice or logout flow, please open a Support ticket! Our team will be able to help debug the issue directly :)