[ko] Translate concepts/overview/kubectl.md to Korean

[devdoyen]

Description

Translate content/en/docs/concepts/overview/kubectl.md to Korean.

• Translated the page while adhering to the official Kubernetes Korean glossary and style guide.
• Maintained all markdown links, shortcodes, and formatting identical to the English source.

This translation was assisted by an AI tool for initial translation and refinement. I have fully reviewed the content, ensured it adheres to the official Kubernetes Korean guidelines, and take full responsibility for the final text.

Issue

Closes: #56488

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: devdoyen / name: ysndy (0fc61b8, f1e1da3)

[kubernetes-prow]

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Details

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