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-tailscale-send

@@ -27,8 +27,8 @@ if ((${#files[@]} == 0)); then
   picked=$(omarchy-file-select --title "Send to $name" --multiple) || status=$?
 
   if ((${status:-0} > 1)); then
-    omarchy-notification-send -g "󰒊" -u critical "Could not send to $name" \
-      "The file chooser did not open"
+    omarchy-notification-send -g "󰒊" -u critical "$(omarchy-text "Could not send to %1" "$name")" \
+      "$(omarchy-text "The file chooser did not open")"
     exit 1
   fi
 
@@ -43,8 +43,8 @@ else
 fi
 
 if error=$(tailscale file cp --update-interval=0 -- "${files[@]}" "$machine:" 2>&1); then
-  omarchy-notification-send -g "󰒊" "Sent to $name" "$what"
+  omarchy-notification-send -g "󰒊" "$(omarchy-text "Sent to %1" "$name")" "$what"
 else
-  omarchy-notification-send -g "󰒊" -u critical "Could not send to $name" "${error:-Taildrop transfer failed}"
+  omarchy-notification-send -g "󰒊" -u critical "$(omarchy-text "Could not send to %1" "$name")" "${error:-$(omarchy-text "Taildrop transfer failed")}"
   exit 1
 fi