Update e2e/app.spec.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: mttrbrts

e2e/app.spec.ts

@@ -21,9 +21,9 @@ test.describe('App Loading', () => {
     await expect(page.locator('.app-spinner-container')).toBeHidden({ timeout: 30000 });
 
     // Check for editor panel headers
-    await expect(page.getByText('Data Model')).toBeVisible();
-    await expect(page.getByText('Template')).toBeVisible();
-    await expect(page.getByText('Data')).toBeVisible();
+    await expect(page.getByText('Data Model (Concerto)')).toBeVisible();
+    await expect(page.getByText('Template (TemplateMark)')).toBeVisible();
+    await expect(page.getByText('Data (JSON)')).toBeVisible();
   });
 
   test('should display Preview panel with content', async ({ page }) => {