Possibility to manually store credentials on web

[egonm12]

Checklist

• I have looked into the Readme, Examples, and FAQ and have not found a suitable solution or answer.
• I have looked into the API documentation and have not found a suitable solution or answer.
• I have searched the issues and have not found a suitable solution or answer.
• I have searched the Auth0 Community forums and have not found a suitable solution or answer.
• I agree to the terms within the Auth0 Code of Conduct.

Describe the problem you'd like to have solved

For mobile, it is possible to store credentials manually:

await _auth0.credentialsManager.storeCredentials(credentials);

For web there is no similar option. Is there a way we can do this using the auth0-spa-js SDK or perhaps using the auth0.js SDK?

Describe the ideal solution

A similar implementation for web

await _auth0Web.storeCredentials(credentials);

Alternatives and current workarounds

No response

Additional context

No response