i18n(ko-KR): update `i18n.mdx` #8873

Job	Run time
Check for accessibility issues	2m 55s
changes	6s
Run type checks	42s
Docs site builds on Windows	2m 4s
Check for broken links	1m 1s
Run E2E tests (${{ matrix.os }})	0s
Run unit tests	0s
	6m 48s

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