feat(pos): add shop and statistics modules with components, services, and routing

- Implemented shop module with root component, loading state, and invoice handling.
- Created statistics module with invoice type card component, API routes, and data models.
- Added season picker component for selecting year and season.
- Integrated services for fetching statistics data and managing state.
- Established routing for statistics and shop views.

src/app/domains/pos/modules/configs/views/root.component.html

@@ -1,8 +1,8 @@
-<div class="w-full h-full flex items-center justify-center p-4">
+<div class="flex h-full w-full items-center justify-center p-4">
   <app-card-data cardTitle="تنظیمات فاکتور" class="w-full">
     <p-message variant="text" severity="info" icon="pi pi-info-circle">
       هریک از موارد زیر را که می‌خواهید در چاپ فاکتور نمایش داده‌ شوند را انتخاب کنید
     </p-message>
-    <pos-config-print-form class="block w-full mt-6" (onClose)="returnToMainPage()" (onSubmit)="returnToMainPage()" />
+    <pos-config-print-form class="mt-6 block w-full" (onClose)="returnToMainPage()" (onSubmit)="returnToMainPage()" />
   </app-card-data>
 </div>