Fix not-found exercise smoke assertion

Co-authored-by: Kent C. Dodds <me+github@kentcdodds.com>

Author: cursoragent

exercises/07.error-handling/05.solution.not-found/tests/e2e/smoke.test.ts

@@ -2,7 +2,7 @@ import { test, expect } from '@playwright/test'
 
 test('can visit the home page', async ({ page }) => {
 	await page.goto('/')
-	await expect(page.getByText('Hello World')).toBeVisible()
+	await expect(page.getByRole('heading', { name: 'Epic Notes' })).toBeVisible()
 })
 
 test('post requests to missing routes return the not found response', async ({