Updates all CMS updates to use:
- Tailwind 3 (and the corresponding `tailwind.config.js` and PostCSS changes)
- `remark@14` and `remark-html@15` (and the corresponding ESM breaking changes)
- `date-fns` minor bump
Ensured all CMS examples were:
- Using `next/image`
- Not using `as` for `next/link` (no longer needed)
[ch2502]
- Added new import flow to every CMS example, using the deploy button, and removed `vercel.json`
- Replaced `dotenv` with the new env support in outdated examples