Review access token renewal function after SK2 update

[JustArchi]

Checklist

• [X] I read and understood ASF's Contributing guidelines
• [X] I also read Setting-up and FAQ, I don't need help, this is an enhancement idea
• [X] My idea doesn't duplicate existing ASF functionality described on the wiki
• [X] I believe that my idea falls into ASF's scope and should be offered as part of ASF built-in functionality
• [X] My idea doesn't violate the Steam Subscriber Agreement
• [X] My idea doesn't violate the Steam Online Conduct
• [X] This is not ASF-ui suggestion

Enhancement purpose

Once SK2 update is released, we should likely drop our own custom mechanism for access token refresh and reach to SK2-provided one.

Solution

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Why currently available solutions are not sufficient?

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Can you help us with this enhancement idea?

Yes, I can code the solution myself and send a pull request

Additional info

No response