message: boxel: Add explicit import of qunit-dom
  This is an attempt to address this mysterious Boxel failure
  when publishing:
diff: @@ -4,3 +4,8 @@ declare module '@cardstack/boxel/templates/*' {
  const tmpl: TemplateFactory;
  export default tmpl;
  }
  +
  +// Needed because `yarn prepack` was not recognising assert.dom
  +// and this fix caused other typing problems:
  +// https://github.com/simplabs/qunit-dom#typescript
  +import 'qunit-dom';
  