Add support for SubWallet

[RyanDinh8]

SubWallet is the pioneering user-friendly wallet in the Polkadot ecosystem that is also EVM compatible. Some of our partners have been asking for the feature to support SubWallet on Rainbow.

Below are our materials:

• Website: https://subwallet.app/
• Docs: https://docs.subwallet.app/
• Github: https://github.com/Koniverse/SubWallet-Extension
• Connector:
• https://github.com/Koniverse/SubConnect/tree/master/packages/wagmi-connector
• https://www.npmjs.com/package/@subwallet/wagmi-connector

Would be great to see the integration live.

Thank you very much.