Add Simplified Chinese as a system language

The installer asks for the language before the keyboard, and
Setup > Language (omarchy language en|zh) switches it later. Under
zh_CN the menu reads its labels from omarchy-menu.zh-cn.jsonc, the
shell from I18nZh.js through I18n.tr, and notifications are worded
by their sender through omarchy-text, which reads the same table.
User text is never translated.

bin/omarchy-hyprland-window-transparency

@@ -37,9 +37,9 @@ if (( $# == 0 )); then
 fi
 
 case $1 in
-  opaque) LABEL="Opaque windows" ;;
-  transparent) LABEL="Transparent windows" ;;
-  glassy) LABEL="Glassy windows" ;;
+  opaque) LABEL=$(omarchy-text "Opaque windows") ;;
+  transparent) LABEL=$(omarchy-text "Transparent windows") ;;
+  glassy) LABEL=$(omarchy-text "Glassy windows") ;;
   *)
     echo "Usage: omarchy-hyprland-window-transparency [opaque|transparent|glassy]" >&2
     exit 1