Use cards instead of a list of links

[jmintuitive]

Description

Updates blockchain.mdx and guides.mdx to use cards with brief descriptions / groupings for easier navigation.

Also updates one tutorial with a link to the coin move module so that context from the original link isn't lost.

Checklist

• Do all Lints pass?
  • [ ] Have you ran pnpm spellcheck?
  • [x] Have you ran pnpm fmt?
  • [x] Have you ran pnpm lint?

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
developer-docs-nextra	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 31, 2024 0:03am

[netlify[bot]]

✅ Deploy Preview for aptos-developer-docs ready!

Name	Link
🔨 Latest commit	ac3fedf4bfa3d021b24e545957c4368b760b3970
🔍 Latest deploy log	https://app.netlify.com/sites/aptos-developer-docs/deploys/66a97e233daad60008c83463
😎 Deploy Preview	https://deploy-preview-526--aptos-developer-docs.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 configuration.

[jmintuitive]

@hariria Updated :)