i18n(ko-KR): update using-components.mdx

[jsparkdev]

Description

• update using-components.mdx
• Astro 5 + collection loaders + legacy collections support #2612

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Tracked Files

Locale	File	Note
ko	components/using-components.mdx	Localization changed, will be marked as complete.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[HiDeoo]

Thanks for the update 🙌