🌐 [i18n-KO] Translated `idefics.md` to Korean (#32258)

* docs: ko: tasks/idefics.md

* feat: nmt draft

* fix: manual edits

* fix: resolve suggestions
Co-authored-by: Chaewon Song <chaewon1019@ewhain.net>
Co-authored-by: Harheem Kim <49297157+harheem@users.noreply.github.com>
Co-authored-by: timdalxx <48753785+jeongiin@users.noreply.github.com>

---------
Co-authored-by: Chaewon Song <chaewon1019@ewhain.net>
Co-authored-by: Harheem Kim <49297157+harheem@users.noreply.github.com>
Co-authored-by: timdalxx <48753785+jeongiin@users.noreply.github.com>

docs/source/ko/_toctree.yml

@@ -100,8 +100,8 @@
     title: 생성
   - isExpanded: false
     sections:
-    - local: in_translation
-      title: (번역중) Image tasks with IDEFICS
+    - local: tasks/idefics
+      title: IDEFICS를 이용한 이미지 작업
     - local: in_translation
       title: (번역중) LLM prompting guide
     title: (번역중) 프롬프팅