### UPDATE SIDEBAR: "طلبات الصالون" SUBMENU

I want you to update the main sidebar navigation for the Beauty Salon ERP.

Focus ONLY on the "Salon Orders" section in the sidebar and make it look like this structure, in Arabic:

- لوحة التحكم
- طلبات الصالون (collapsible group)
   - طلبات اليوم
   - طلبات
   - طلبات التطبيق
   - إلغاء الطلب
   - الطلبات المؤجلة
   - الطلبات المجدولة
   - تقييمات
   - اسباب التقييمات

Steps:

1) Find the sidebar / navigation configuration file
   (for example: `Sidebar.jsx`, `Sidebar.tsx`, `navigation.js`, `menu.ts`, or similar).

2) Locate the current menu item for "طلبات الصالون" (Salon Orders).
   - Convert it into a PARENT group with a collapsible submenu.
   - Use the existing icon for orders (shopping cart / box).

3) Under "طلبات الصالون", add the following submenu items **in this exact order**:

   1) "طلبات اليوم"
      - Link to the route that shows today's orders.
      - If the existing route is something like `/orders/today` or a filtered view,
        reuse it. If not, create a placeholder route `/orders/today` that will
        filter orders by today's date.

   2) "طلبات"
      - Link to the main orders list (all orders).
      - Use the current route for orders listing (for example `/orders`).

   3) "طلبات التطبيق"
      - Link to a view that shows orders coming from the mobile app.
      - Use an existing route if available (e.g. `/orders/app`), or create a new
        route that filters orders by `source = "app"`.

   4) "إلغاء الطلب"
      - Link to a view that lists canceled orders.
      - Route example: `/orders/canceled` (filter by status = "canceled").

   5) "الطلبات المؤجلة"
      - Link to a view that lists postponed orders.
      - Route example: `/orders/postponed` (status = "postponed").

   6) "الطلبات المجدولة"
      - Link to a view that lists scheduled orders.
      - Route example: `/orders/scheduled` (status = "scheduled").

   7) "تقييمات"
      - Link to a page that lists order ratings.
      - Route example: `/orders/ratings`.

   8) "اسباب التقييمات"
      - Link to a page that manages or reports on rating reasons.
      - Route example: `/orders/rating-reasons`.

4) Keep RTL layout and Arabic labels exactly as written:
   - "طلبات اليوم"
   - "طلبات"
   - "طلبات التطبيق"
   - "إلغاء الطلب"
   - "الطلبات المؤجلة"
   - "الطلبات المجدولة"
   - "تقييمات"
   - "اسباب التقييمات"

5) Do NOT change any other top-level modules (Purchases, Inventory, HR, etc.).
   Only adjust the "طلبات الصالون" section and its children.

Make sure the app still builds and runs after updating the sidebar/menu configuration.
