message: Fix no-mixed-spaces-and-tabs eslint error
diff: @@ -2,10 +2,9 @@ import { assert } from "@ember/debug"
  import Message from '@cardstack/models/generated/message';
  import { equal } from '@ember/object/computed';
  import { A } from "@ember/array";
  -// import { workflowGroupId } from '@cardstack/workflow/helpers/workflow-group-id';
  import { task } from 'ember-concurrency';
  -import { computed } from "@ember/object"
  +import { computed } from "@ember/object";
  export default Message.extend({
  loadedCard: computed({
  