<h2>Settings</h2>
<div>
  <label>use MetaMask if available<input type="checkbox" [(ngModel)]="useMetaMask"></label>
</div>
<div>
  <button (click)="switchToNewAccountAndSendEther()" [disabled]="useMetaMask">New account and send ether</button>
  <button (click)="switchToDefaultAccount()" [disabled]="useMetaMask">switch to default account</button>
</div>
<div>
  Account: {{defaultAccount$ | async}}
</div>
<div>
  <button (click)="pendingTransactions()" [disabled]="useMetaMask">pending transactions</button>
  <button (click)="deploy()">deploy</button>
</div>
