Sixth Korean l10n work for release-1.19

- fix Korean translation of 'object' (#25370)
- Update outdated files in the dev-1.19-ko.6 branch (2) (#25403)
- Translate setup/release/version-skew-policy.md in Korean (#25345)
- Translate tutorials/configuration/configure-java-microservice/configure-java-microservice/ into Korean (#24981)
- Translate health-checks.md into Korean (#25342)
- Translate reference/glossary/api-group.md in Korean (#25321)
- Translate reference/glossary/object.md in Korean (#25318)
- Translate tutorials/configuration/configure-java-microservice/configure-java-microservice-interactive/ into Korean (#24984)
- switch New York Times case study to use youtube shortcode (ko) (#25287)

Co-authored-by: seokho-son <shsongist@gmail.com>
Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: PyungHo Yoon <learder@gmail.com>
Co-authored-by: mylovepooh <jun8414@gmail.com>
Co-authored-by: jmkim <jm1223.kim@samsung.com>
Co-authored-by: santachopa <santachopa@naver.com>
Co-authored-by: Arhell <arhell333@gmail.com>

content/ko/docs/home/_index.md

@@ -30,7 +30,7 @@ cards:
   button: "튜토리얼 보기"
   button_path: "/ko/docs/tutorials"
 - name: setup
-  title: "클러스터 구축하기"
+  title: "K8s 클러스터 구축하기"
   description: "보유한 자원과 요구에 맞게 동작하는 쿠버네티스를 구축한다."
   button: "쿠버네티스 구축하기"
   button_path: "/ko/docs/setup"
@@ -55,7 +55,7 @@ cards:
   button: 문서에 기여하기
   button_path: "/ko/docs/contribute"
 - name: release-notes
-  title: 릴리스 노트
+  title: K8s 릴리스 노트
   description: 쿠버네티스를 설치하거나 최신의 버전으로 업그레이드하는 경우, 현재 릴리스 노트를 참고한다.
   button: "쿠버네티스 다운로드"
   button_path: "/docs/setup/release/notes"