First Korean l10n work for release-1.19

- Translate tasks/job/parallel-processing-expansion.md into Korean (#23544)
- Fix issue with ko/docs/concepts/workloads/controllers/job.md (#23720)
- Translate reference/scheduling/policies.md in Korean (#23690)
- Update outdated files in the dev-1.19-ko.1 branch (#23702)
- Modify translation access by Korean glossary (#23627)

Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: junghyeonsu <54893898+junghyeonsu@users.noreply.github.com>
Co-authored-by: coolguyhong <podolsmith@naver.com>

content/ko/docs/tasks/_index.md

@@ -12,4 +12,4 @@ content_type: concept
 시퀀스를 제공함으로써, 하나의 일을 수행하는 방법을 보여준다.
 
 만약 태스크 페이지를 작성하고 싶다면,
-[문서 풀 리퀘스트(Pull Request) 생성하기](/ko/docs/contribute/new-content/new-content/)를 참조한다.
+[문서 풀 리퀘스트(Pull Request) 생성하기](/ko/docs/contribute/new-content/open-a-pr/)를 참조한다.