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/svgcleaner.md

@@ -0,0 +1,12 @@
+# svgcleaner
+
+> SVG 최적화 도구.
+> 더 많은 정보: <https://github.com/RazrFalcon/svgcleaner>.
+
+- SVG 최적화:
+
+`svgcleaner {{입력.svg}} {{출력.svg}}`
+
+- SVG를 여러 번 최적화:
+
+`svgcleaner --multipass {{입력.svg}} {{출력.svg}}`