Translate/prefetchDNS

[juheehasaeyo]

안녕하세요! prefetchDNS 문서 번역을 완료하였습니다 :)

Progress

• [x] 번역 초안 작성 (Draft translation)
• [x] 공통 스타일 가이드 확인 (Check the common style guide)
• [x] 모범사례 확인 (Check best practices)
• [x] 용어 확인 (Check the term)
• [x] 맞춤법 검사 (Spelling check)
• [ ] 리뷰 반영 (Resolve reviews)

[vercel[bot]]

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1 Ignored Deployment

| Name | Status | Preview | Comments | Updated (UTC) | | :--- | :----- | :------ | :------- | :------ | | **ko-legacy-reactjs-org** | ⬜️ Ignored ([Inspect](https://vercel.com/fbopensource/ko-legacy-reactjs-org/GD7bSp6pARJCp91XzQatzkm9XJQh)) | [Visit Preview](https://ko-legacy-reactjs-org-git-fork-juheehasaeyo-26c1ac-fbopensource.vercel.app) | | Jun 1, 2024 5:26pm |

[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! 🙌