converter/src/app/converter-selector/converter-selector.component.html

<div [ngClass]="{select_wrapper: true, error: step.error}">
  <div class="arrow_box">
    <select (change)="convert($event)">
      <option id="undefined">Select conversion ...</option>
      @for (c of converters; track c.getId()) {
        <option id="{{c.getId()}}">{{ c.getDisplayname() }}</option>
      }
    </select>
  </div>
</div>