test(e2e): assert against new hero h1 instead of removed h2 heading

The home page now leads with an <h1> 'No download. No install. Just
type.' instead of an <h2> 'Explore Semantic Anchors'. Update the
homepage smoke test to look for the hero headline (EN or DE) on the
new <h1>.

Author: raifdmueller

website/tests/e2e/website.spec.js

@@ -14,7 +14,7 @@ test.describe('Homepage - Card Grid', () => {
 
   test('should load homepage successfully', async ({ page }) => {
     await expect(page).toHaveTitle(/Semantic Anchors/)
-    await expect(page.locator('h2').first()).toContainText('Semantic Anchors')
+    await expect(page.locator('main h1').first()).toContainText(/No download|Nichts installieren/)
   })
 
   test('should display header with navigation', async ({ page }) => {