Remove requirement for chainConfig when not used

[Jackman3005]

We are using Web3Auth to log users in and create a unique principal for interacting with an IC (Internet Computer) canister. We haven't found use for the chainConfig and being required to provide it is a bit confusing. See the following code we have:

import { CustomChainConfig, WEB3AUTH_NETWORK } from "@web3auth/base";
import { Web3AuthOptions } from "@web3auth/modal";
import { CommonPrivateKeyProvider } from "@web3auth/base-provider";
import type { Web3AuthContextConfig } from "@web3auth/modal-react-hooks/dist/types/interfaces";
import { ENV } from "@/Env";

const chainConfig: CustomChainConfig = {
  chainNamespace: "other",
  chainId: "not-used",
  rpcTarget: "not-used",
};

const privateKeyProvider = new CommonPrivateKeyProvider({
  config: { chainConfig: chainConfig },
});

const web3AuthOptions: Web3AuthOptions = {
  clientId: ENV.WEB3AUTH_CLIENT_ID,
  web3AuthNetwork: WEB3AUTH_NETWORK[ENV.WEB3AUTH_NETWORK],
  privateKeyProvider,
  chainConfig,
};

const web3AuthContextConfig: Web3AuthContextConfig = {
  web3AuthOptions,
};

export default web3AuthContextConfig;

We can actually set chainId and rpcTarget to bogus data and it does not appear to cause issues during login.

Maybe we are using web3auth wrong or there is a better way to configure we don't know about? Happy to receive guidance here if we are off base.

Thanks in advance 🙏