🌐 [i18n-KO] Translated `token_classification.mdx` to Korean (#22945)

* docs: ko: init: token_classification.mdx

* docs: ko: trans: tasks/token_classification.mdx

* docs: ko: revise: apply suggestions tasks/token_classification.mdx

right vocabulary, spell check, natural expression
Co-authored-by: Sohyun Sim <96299403+sim-so@users.noreply.github.com>

* docs: ko: revise: `Hub` to `허브` in tasks/token_classification.mdx

* docs: ko: revise: `example` in tasks/token_classification.mdx
Co-Authored-By: Gabriel Yang <gabrielwithhappy@gmail.com>
Co-Authored-By: Kihoon Son <75935546+KIHOON71@users.noreply.github.com>
Co-Authored-By: Sohyun Sim <96299403+sim-so@users.noreply.github.com>
Co-Authored-By: Nayeon Han <nayeon2.han@gmail.com>
Co-Authored-By: Wonhyeong Seo <wonhseo@kakao.com>
Co-Authored-By: Jungnerd <46880056+jungnerd@users.noreply.github.com>

* docs: ko: revise: ko expression in tasks/token_classification.mdx
Co-Authored-By: Gabriel Yang <gabrielwithhappy@gmail.com>

* Revert "docs: ko: revise: ko expression in tasks/token_classification.mdx"

This reverts commit 8efe28059b65cf02de12249db2132a50e2b2b827.

* docs: ko: revise: `quick tour` in tasks/token_classification.mdx
Co-Authored-By: Gabriel Yang <gabrielwithhappy@gmail.com>

---------
Co-authored-by: Sohyun Sim <96299403+sim-so@users.noreply.github.com>
Co-authored-by: Gabriel Yang <gabrielwithhappy@gmail.com>
Co-authored-by: Kihoon Son <75935546+KIHOON71@users.noreply.github.com>
Co-authored-by: Nayeon Han <nayeon2.han@gmail.com>
Co-authored-by: Wonhyeong Seo <wonhseo@kakao.com>
Co-authored-by: Jungnerd <46880056+jungnerd@users.noreply.github.com>

docs/source/ko/_toctree.yml

@@ -49,8 +49,8 @@
     - sections:
       - local: tasks/sequence_classification
         title: 텍스트 분류
-      - local: in_translation
-        title: (번역중) Token classification
+      - local: tasks/token_classification
+        title: 토큰 분류
       - local: in_translation
         title: (번역중) Question answering
       - local: in_translation