fix: Fix eth_chainId not being resolved from cache when using EIP-1193 Provider

[jiexi]

Explanation

• Ensure eth_chainId is resolved by cache in the MWPTransport when hit by the EIP-1193 Provider
• Add state getter to ConnectEvm that passes through the #core.state (ConnectMultichain) value

References

See: Web3Auth/web3auth-web#2326

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

[jiexi]

Might want to split these into separate PRs

[adonesky1]

eth_chainId changes look good to me. I agree we should split out the state getter and explain why its necessary 🤮

[adonesky1]

instead of exposing the full state object should we expose a connectionStatus (or some other word for it) value instead?