test: include HTML in language list

Author: patricktree

e2e-tests/options.test.ts

@@ -6,7 +6,7 @@ import { test } from "@playwright/test";
 /**
  * This test verifies that:
  * - Users can open the language options popover
- * - Users can switch between supported languages (JavaScript, JSON, Markdown, CSS)
+ * - Users can switch between supported languages (JavaScript, JSON, Markdown, CSS, HTML)
  * - For each language the entire page is correctly rendered
  */
 test("should switch language and show options for each", async ({ page }) => {