fix: remove stale React 18 links

[lumirlumir]

과거에 React 18 문서로 연결되는 https://ko-react-exy5xcwjj-fbopensource.vercel.app/ 링크를 추가해두었는데, 해당 링크가 더 이상 동작하지 않아 제거하였습니다.

현재 아래와 같은 링크로 연결됩니다:

• 전:

• 후:

위 구조는 현재 영문 react.dev 웹사이트와 일치합니다.

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추가로, 문서 상에 존재하는 오탈자 및 오역을 발견하여 수정하였습니다.

[vercel]

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

Project	Deployment	Review	Updated (UTC)
ko-react-dev	Error		Jan 29, 2026 0:29am

1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
ko-legacy-reactjs-org	Ignored	Preview	Jan 29, 2026 0:29am

[Copilot]

Pull request overview

This PR removes stale React 18 documentation links that no longer work. The PR description indicates that the URL https://ko-react-exy5xcwjj-fbopensource.vercel.app/ was previously added to link to React 18 Korean documentation but is no longer functional.

Changes:

• Removed React 18 link button from the top navigation bar
• Removed React 18 link button from the home page
• Improved terminology and formatting in documentation (SSG description and code comment formatting)

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
src/components/Layout/TopNav/TopNav.tsx	Removed the React 18 Korean translation link button from the navigation bar
src/components/Layout/HomeContent.js	Removed the React 18 Korean translation link button from the home page
src/content/reference/react-dom/static/prerender.md	Improved SSG terminology formatting to include superscript English translation
src/content/reference/react-dom/server/renderToString.md	Added backticks around renderToString function name and period in code comment for consistency

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[github-actions]

Size changes

Details

📦 Next.js Bundle Analysis for undefined

This analysis was generated by the Next.js Bundle Analysis action. 🤖

Five Pages Changed Size

The following pages changed size from the code in this PR compared to its base branch:

Page	Size (compressed)	First Load
/404	133.46 KB (🟢 -198 B)	243.64 KB
/500	133.46 KB (🟢 -198 B)	243.64 KB
/[[...markdownPath]]	136.1 KB (🟢 -198 B)	246.28 KB
/errors	133.59 KB (🟢 -198 B)	243.78 KB
/errors/[errorCode]	133.57 KB (🟢 -198 B)	243.76 KB

Details

Only the gzipped size is provided here based on an expert tip.

First Load is the size of the global bundle plus the bundle for the individual page. If a user were to show up to your website and land on a given page, the first load size represents the amount of javascript that user would need to download. If next/link is used, subsequent page loads would only need to download that page's bundle (the number in the "Size" column), since the global bundle has already been downloaded.

Any third party scripts you have added directly to your app using the <script> tag are not accounted for in this analysis

Next to the size is how much the size has increased or decreased compared with the base branch of this PR. If this percentage has increased by 10% or more, there will be a red status indicator applied, indicating that special attention should be given to this.

[lumirlumir]

확인해보니까, 어느 순간부터 Vercel Preview 혹은 Vercel Production이 생성한 임시 URL에 대한 접근이 막혔네요.

현재 한국 ko.react.dev 및 영문 react.dev 사이트 모두 아래와 같은 View Deployment 확인이 안됩니다.

예를 들어, react.dev에서 가장 최근에 생성된 아래 PR에서, View Deployment를 눌러보면, 정상 동작하지 않습니다:

reactjs/react.dev#8277

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@hg-pyun 혹시 시간 되실 때 한번 확인 부탁드려도 될까요? 저만 그런건지 아니면 다들 그런건지 잘 모르겠습니다 😭