tldr: update Korean translation, common/t*: add Korean translation (#14645)

* common/t*: add Korean translation

* tldr: update Korean translation

* Update tcc.md

* Update pages.ko/common/tcc.md

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>

* Update pages.ko/common/tar.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/tarsnap.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/tarsnap.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/transfersh.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/tuir.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/twine.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/twine.md

Co-authored-by: Chooooo <contact@choo.ooo>

---------

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: Chooooo <contact@choo.ooo>

pages.ko/common/thunderbird.md

@@ -0,0 +1,16 @@
+# thunderbird
+
+> 이메일 클라이언트 및 RSS 리더.
+> 더 많은 정보: <https://thunderbird.net>.
+
+- thunderbird 열기:
+
+`thunderbird`
+
+- 특정 사용자 프로필 사용:
+
+`thunderbird -P {{프로필_이름}}`
+
+- 특정 사용자 프로필 디렉토리 사용:
+
+`thunderbird --profile {{경로/대상/프로필/디렉토리}}`