test(e2e): upgrade e2e cases to Svelte 5

[chenjiahan]

Summary

Upgrade e2e cases to Svelte 5.

The HMR case is updated because svelte-loader does not support HMR for Svelte 5 yet.

Related Links

https://github.com/sveltejs/svelte-loader?tab=readme-ov-file#hot-reload

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[netlify]

✅ Deploy Preview for rsbuild ready!

Name	Link
🔨 Latest commit	da4c231
🔍 Latest deploy log	https://app.netlify.com/sites/rsbuild/deploys/67248694bfa41800081bcf9c
😎 Deploy Preview	https://deploy-preview-3881--rsbuild.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 76 (🟢 up 4 from production) Accessibility: 97 (no change from production) Best Practices: 100 (no change from production) SEO: 100 (no change from production) PWA: 60 (no change from production) View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.