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-capture-text

@@ -23,4 +23,4 @@ TEXT=$(grim -g "$SELECTION" - | tesseract stdin stdout --oem 1 --psm 6 -l "${OMA
 [[ -z $TEXT ]] && exit 1
 
 printf "%s" "$TEXT" | wl-copy
-omarchy-notification-send -g 󰴑 "Copied text from selection to clipboard"
+omarchy-notification-send -g 󰴑 "$(omarchy-text "Copied text from selection to clipboard")"