Sync with react.dev @ 4c91abc (#994)

* Update /link/legacy-context to removal blog post (#7047)

* fix: EN link to KO link

영문 링크 한국 링크로 수정.

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Co-authored-by: Jan Kassens <[email protected]>
Co-authored-by: Haegul Pyun <[email protected]>
Co-authored-by: 루밀LuMir <[email protected]>

Author: 4 people