common/s*: add and update Korean translation (#14666)

* common/s*: add and update Korean translation

* scamper: fix typo

* Update pages.ko/common/simplehttpserver.md

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

* Update pages.ko/common/steamcmd.md

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

---------

Co-authored-by: Sebastiaan Speck <shem.speck@gmail.com>
Co-authored-by: Chooooo <contact@choo.ooo>

pages.ko/common/shift.md

@@ -0,0 +1,12 @@
+# shift
+
+> 위치 매개변수를 이동.
+> 더 많은 정보: <https://manned.org/shift.1posix>.
+
+- 첫 번째 위치 매개변수 제거:
+
+`shift`
+
+- 첫 번째 `N`개의 위치 매개변수 제거:
+
+`shift {{N}}`