🌐 [i18n-KO] Translated modular_transformers.md to Korean (#33772)

* docs: ko: modular_transformers.md

* feat: nmt draft

* fix inline TOC

* fix: manual edits

* fix: resolve suggestions

* fix: resolve suggestions

Co-authored-by: Jiwook Han <33192762+mreraser@users.noreply.github.com>
Co-authored-by: Chulhwa (Evan) Han <cjfghk5697@ajou.ac.kr>

* fix: resolve suggestions

Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

* Update docs/source/ko/_toctree.yml

Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

---------

Co-authored-by: Jiwook Han <33192762+mreraser@users.noreply.github.com>
Co-authored-by: Chulhwa (Evan) Han <cjfghk5697@ajou.ac.kr>
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

docs/source/ko/_toctree.yml

@@ -137,6 +137,8 @@
     title: 문제 해결
   - local: gguf
     title: GGUF 파일들과의 상호 운용성
+  - local: modular_transformers
+    title: transformers에서의 모듈성
   title: (번역중) 개발자 가이드
 - sections:
   - local: in_translation