Sync with react.dev June 17th

[AhmedBaset]

• Update to CodePen URL (https://github.com/reactjs/react.dev/pull/6452)
• Remove mention of Suspensey <script /> (https://github.com/reactjs/react.dev/pull/6945)
• Small typo - Update cache.md (https://github.com/reactjs/react.dev/pull/6935)
• Update preinit.md 📜 (https://github.com/reactjs/react.dev/pull/6938)
• docs(api-act): api act parts word error (https://github.com/reactjs/react.dev/pull/6939)
• Recommend installing exact RC (https://github.com/reactjs/react.dev/pull/6944)
• rearrange conferences (https://github.com/reactjs/react.dev/pull/6952)

[vercel[bot]]

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

Name	Status	Preview	Comments	Updated (UTC)
ar-react-dev	🔄 Building (Inspect)	Visit Preview	💬 Add feedback	Jun 17, 2024 11:53am

1 Ignored Deployment

| Name | Status | Preview | Comments | Updated (UTC) | | :--- | :----- | :------ | :------- | :------ | | **legacy-ar-reactjs-org** | ⬜️ Ignored ([Inspect](https://vercel.com/fbopensource/legacy-ar-reactjs-org/6NtvWzdcsUT4MFY9KDE1wpEdV2BF)) | [Visit Preview](https://legacy-ar-reactjs-org-git-sync-06-17-fbopensource.vercel.app) | | Jun 17, 2024 11:53am |

[github-actions[bot]]

Size changes

## 📦 Next.js Bundle Analysis for react-dev This analysis was generated by the [Next.js Bundle Analysis action](https://github.com/hashicorp/nextjs-bundle-analysis). 🤖 This PR introduced no changes to the JavaScript bundle! 🙌