chore: add test:e2e scripts to package.json

Author: ronaldtse

package.json

@@ -15,7 +15,9 @@
     "test:watch": "vitest",
     "lint": "eslint .",
     "format": "prettier --write .",
-    "format:check": "prettier --check ."
+    "format:check": "prettier --check .",
+    "test:e2e": "playwright test",
+    "test:e2e:ui": "playwright test --ui"
   },
   "dependencies": {
     "@asciidoctor/core": "^4.0.6",