Replace `index.d.ts` with `@tsignore` annotations

[netlify[bot]]

✅ Deploy Preview for embed-motoko ready!

Name	Link
🔨 Latest commit	2fd9534f3dd68a40a6d89265ed5cbc514837c3ab
🔍 Latest deploy log	https://app.netlify.com/sites/embed-motoko/deploys/641a0dcd22619c000818c040
😎 Deploy Preview	https://deploy-preview-88--embed-motoko.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

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