Add Substrate/Joystream support to WalletConnect support for OneKey

[bedeho]

Currently, OneKey supports WalletConnect, but only for EVM chains, however, a tech lead there suggested that we would be able to add support for Substrate/Joystream on our own. We should look at packages/kit-bg/src/providers/ProviderApiWalletConnect in https://github.com/OneKeyHQ/app-monorepo as a starting point.