Forth Korean l10n work for release-1.19

- Fix ko glossary managed service title (#24621)
- Translate reference/glossary/service-broker.md in Korean (#24632)
- Translate reference/command-line-tools-reference/kubelet-authentication-authorization.md into korean (#24623)
- Update outdated files in the dev-1.19-ko.4 branch (#24622)
- Translate setup/production-environment/tools/kubeadm/self-hosting/ into Korean (#24655)
- Translate reference/kubectl/kubectl.md into Korean (#24482)
- docs: fix typo (#24713)
- Translate connecting-frontend-backend to Korean (#24422)
- Translate reference/kubectl/conventions.md into Korean (#24614)
- Translate k8s 1.19 relaese note in korean (#24633)

Co-authored-by: seokho-son <shsongist@gmail.com>
Co-authored-by: santachopa <santachopa@naver.com>
Co-authored-by: kosehy@gmail.com <kosehy@gmail.com>
Co-authored-by: Jerry Park <jaehwa@gmail.com>
Co-authored-by: markruler <csu0414@gmail.com>
Co-authored-by: noel <neutiyoo@gmail.com>
Co-authored-by: coolguyhong <podolsmith@naver.com>
Co-authored-by: chhanz <han0495@gmail.com>
Co-authored-by: bluefriday <bluefriday86@gmail.com>

content/ko/docs/concepts/architecture/nodes.md

@@ -12,7 +12,7 @@ weight: 10
 {{< glossary_tooltip text="파드" term_id="pod" >}}를
 실행하는데 필요한 서비스가 포함되어 있다.
 
-일반적으로 클러스터에는 여러개의 노드가 있으며, 학습 또는 리소스가 제한되는
+일반적으로 클러스터에는 여러 개의 노드가 있으며, 학습 또는 리소스가 제한되는
 환경에서는 하나만 있을 수도 있다.
 
 노드의 [컴포넌트](/ko/docs/concepts/overview/components/#노드-컴포넌트)에는