Sync with reactjs.org @ c1c3d1db

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Merge changes from reactjs.org at c1c3d1db

The following files have conflicts and may need new translations:

• [x] README.md
• [x] beta/package.json
• [x] beta/src/components/MDX/Sandpack/CustomPreset.tsx
• [x] beta/src/components/MDX/Sandpack/Preview.tsx
• [x] beta/src/components/MDX/Sandpack/SandpackRoot.tsx
• [x] beta/src/components/MDX/Sandpack/createFileMap.ts
• [x] beta/src/pages/learn/add-react-to-a-website.md
• [x] beta/src/pages/learn/editor-setup.md
• [x] beta/src/pages/learn/extracting-state-logic-into-a-reducer.md
• [x] beta/src/pages/learn/installation.md
• [x] beta/src/pages/learn/manipulating-the-dom-with-refs.md
• [x] beta/src/pages/learn/passing-data-deeply-with-context.md
• [x] beta/src/pages/learn/reacting-to-input-with-state.md
• [x] beta/src/pages/learn/referencing-values-with-refs.md
• [x] beta/src/pages/learn/render-and-commit.md
• [x] beta/src/pages/learn/rendering-lists.md
• [x] beta/src/pages/learn/sharing-state-between-components.md
• [ ] beta/src/pages/learn/start-a-new-react-project.md
• [x] beta/src/pages/learn/state-as-a-snapshot.md
• [x] beta/src/pages/learn/updating-arrays-in-state.md
• [x] beta/src/pages/learn/writing-markup-with-jsx.md
• [x] beta/yarn.lock
• [ ] content/docs/accessibility.md
• [ ] content/docs/add-react-to-a-website.md
• [ ] content/docs/addons-shallow-renderer.md
• [ ] content/docs/cdn-links.md
• [ ] content/docs/code-splitting.md
• [ ] content/docs/components-and-props.md
• [ ] content/docs/concurrent-mode-adoption.md
• [ ] content/docs/concurrent-mode-intro.md
• [ ] content/docs/concurrent-mode-patterns.md
• [ ] content/docs/concurrent-mode-reference.md
• [ ] content/docs/concurrent-mode-suspense.md
• [ ] content/docs/error-boundaries.md
• [ ] content/docs/faq-functions.md
• [ ] content/docs/handling-events.md
• [ ] content/docs/hooks-intro.md
• [ ] content/docs/hooks-reference.md
• [ ] content/docs/how-to-contribute.md
• [ ] content/docs/implementation-notes.md
• [ ] content/docs/integrating-with-other-libraries.md
• [ ] content/docs/lists-and-keys.md
• [ ] content/docs/optimizing-performance.md
• [ ] content/docs/react-without-es6.md
• [ ] content/docs/reference-dom-elements.md
• [ ] content/docs/reference-glossary.md
• [ ] content/docs/reference-javascript-environment-requirements.md
• [ ] content/docs/reference-react-component.md
• [ ] content/docs/reference-react-dom-server.md
• [ ] content/docs/reference-react-dom.md
• [ ] content/docs/reference-react.md
• [ ] content/docs/rendering-elements.md
• [ ] content/docs/state-and-lifecycle.md
• [ ] content/docs/strict-mode.md
• [ ] content/docs/testing-recipes.md
• [ ] content/docs/thinking-in-react.md
• [ ] content/docs/typechecking-with-proptypes.md
• [ ] content/tutorial/tutorial.md
• [x] content/versions.yml
• [x] src/pages/versions.js
• [x] src/site-constants.js
• [x] yarn.lock

Please fix the conflicts by pushing new commits to this pull request, either by editing the files directly on GitHub or by checking out this branch.

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후아 많네요 ㅋㅋ 조만간 이어서 하겠습니다

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Size Changes

📦 Next.js Bundle Analysis

This analysis was generated by the next.js bundle analysis action 🤖

🎉 Global Bundle Size Decreased

Page	Size (compressed)
global	84.68 KB (🟢 -10.56 KB)

Details

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New Pages Added

The following pages were added to the bundle from the code in this PR:

Page	Size (compressed)	First Load
/learn/synchronizing-with-effects	64.84 KB	149.52 KB
/learn/you-might-not-need-an-effect	62.89 KB	147.57 KB

One Hundred Ninety Pages Changed Size

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

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/learn/referencing-values-with-refs	55.08 KB (🟢 -69.03 KB)	139.75 KB
/learn/render-and-commit	51.63 KB (🟢 -69.03 KB)	136.3 KB
/learn/rendering-lists	56.23 KB (🟢 -69.01 KB)	140.91 KB
/learn/responding-to-events	53.98 KB (🟢 -69.06 KB)	138.66 KB
/learn/scaling-up-with-reducer-and-context	52.62 KB (🟢 -69.04 KB)	137.3 KB
/learn/sharing-state-between-components	54.04 KB (🟢 -68.6 KB)	138.71 KB
/learn/start-a-new-react-project	49.67 KB (🟢 -69.3 KB)	134.35 KB
/learn/state-a-components-memory	58.19 KB (🟢 -69.03 KB)	142.87 KB
/learn/state-as-a-snapshot	52.63 KB (🟢 -69.31 KB)	137.3 KB
/learn/thinking-in-react	55.63 KB (🟢 -69.04 KB)	140.3 KB
/learn/updating-arrays-in-state	57.03 KB (🟢 -69.04 KB)	141.7 KB
/learn/updating-objects-in-state	57.11 KB (🟢 -69.04 KB)	141.78 KB
/learn/writing-markup-with-jsx	52.02 KB (🟢 -69.02 KB)	136.7 KB
/learn/your-first-component	51.8 KB (🟢 -69.04 KB)	136.47 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.