chore: 🤖 tweak tests and remove unused class file

addons/rose/addon/components/rose/toolbar/index.js

@@ -1,8 +0,0 @@
-import Component from '@glimmer/component';
-import { generateComponentID } from '../../../utilities/component-auto-id';
-
-export default class RoseToolbarComponent extends Component {
-  // =attributes
-
-  id = generateComponentID();
-}

addons/rose/tests/integration/components/rose/toolbar-test.js

@@ -7,12 +7,13 @@ module('Integration | Component | rose/toolbar', function (hooks) {
   setupRenderingTest(hooks);
 
   test('it renders', async function (assert) {
+    assert.expect(1);
     await render(hbs`<Rose::Toolbar />`);
-    assert.ok(find('div'));
     assert.ok(find('.rose-toolbar'));
   });
 
   test('it renders with attributes', async function (assert) {
+    assert.expect(1);
     await render(hbs`<Rose::Toolbar id="toolbar"/>`);
     assert.ok(find('#toolbar'));
   });

ui/admin/app/templates/scopes/scope/sessions/index.hbs

@@ -125,4 +125,4 @@
 
   </page.body>
 
-</Rose::Layout::Page>
+</Rose::Layout::Page>