i18n(ko): add missing translations(Apr 4)

[choo121600]

Added missing Korean translations
(Tried the Korean translation skill and it worked well 😀)

Please review this translations.
/cc @kgw7401 @onestn @noeunkim

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Was generative AI tooling used to co-author this PR?

• Yes (please specify the tool below)
  claude

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[choo121600]

Thanks 🙌