Right now, we have a simple chain ID field in the Extension settings.

When Namadillo connects to the extension, it could provide a chain ID, which the user should review in the extension for approval, if it would require that the extension needs to sign for a different chain. As we already track chain ID, we can keep this in storage, but allow approvals to change it.

• Extension is released with a "default" chain ID
• When interface connects, it provides the chain ID returned from the indexer
• If this chain Id is different than what is in the extension, the extension approval will notify the user to review
• Upon approval, the chain ID in the extension is updated, and the user won't see the notification until the chain is requested to be changed.