message: make provider storage key specific to chain id
diff: @@ -45,7 +45,6 @@ export default class KovanWeb3Strategy implements Layer1Web3Strategy {
  );
  daiTokenContract = new this.web3.eth.Contract(daiToken.abi, daiToken.address);
  - providerStorageKey = 'cardstack-layer-1-provider';
  @tracked walletInfo = new WalletInfo([], this.chainId);
  @tracked defaultTokenBalance: BigNumber | undefined;
  @@ -57,6 +56,10 @@ export default class KovanWeb3Strategy implements Layer1Web3Strategy {
  this.initialize();
  }
  + get providerStorageKey(): string {
  + return `cardstack-chain-${this.chainId}-provider`;
  + }
  +
  async initialize() {
  const previousProviderId = window.localStorage.getItem(
  this.providerStorageKey
  