i18n(ko-KR): update `plugins.mdx` #8938

Job	Run time
changes	2s
Check for accessibility issues	3m 49s
Run type checks	55s
Docs site builds on Windows	2m 10s
Check for broken links	1m 1s
Run E2E tests (${{ matrix.os }})	0s
Run unit tests	0s
	7m 57s

Provide feedback