Stacks wallet authentication support

# Description

Hey, we are in the process of adding [Stacks](https://www.stacks.co/) authentication to Ceramic. We saw the discussion for Arweave support https://github.com/ceramicnetwork/js-ceramic/issues/2175 and are wondering what is the best way to proceed.

For now, we created a pull request to the ChainAgnostic repo https://github.com/ChainAgnostic/namespaces/pull/27 for Stacks specification. Do you have more documentation on how we could add Stacks to the Cacao specification? Or any discord discussion to integrate other chains to this new method as you will deprecate the other one? Thanks!