Creating a connection for each network

First off we will start creating a file that will export a connection service for mainnet and another one for testnet. We will use environment variables for the urls.
network-connections.ts
import { ConnectionService, Environments } from "@peersyst/ckb-wallet-sdk";
const mainnetConnection = new ConnectionService(
process.env.RPC_URL_MAIN,
process.env.INDEXER_URL_MAIN,
Environments.Mainnet,
);
const testnetConnection = new ConnectionService(
process.env.RPC_URL_TEST,
process.env.INDEXER_URL_TEST,
Environments.Testnet,
);
export { mainnetConnection, testnetConnection };