feat: Enhance customer and inventory components with new features and improvements

src/app/modules/pos/services/main.service.ts

@@ -6,6 +6,7 @@ import { POS_API_ROUTES } from '../constants';
 import {
   IPosInfoRawResponse,
   IPosInfoResponse,
+  IPosOrderRequest,
   IPosProductCategoriesRawResponse,
   IPosProductCategoriesResponse,
   IPosStockRawResponse,
@@ -31,4 +32,8 @@ export class PosService {
       this.apiRoutes.productCategories(),
     );
   }
+
+  submitOrder(payload: IPosOrderRequest): Observable<any> {
+    return this.http.post<any>(this.apiRoutes.submitOrder(), payload);
+  }
 }