feat: Implement price info card component and product categories with grid view

- Added `price-info-card.component` to display total amount, tax, and payable amount.
- Integrated price masking directive for formatted price display.
- Created `categories.component` to list product categories with loading skeletons.
- Implemented `grid-view.component` for displaying products in a grid layout.
- Enhanced `products.component` to manage category selection and product display.
- Introduced new models for product categories and stock responses.
- Updated `main.service.ts` to fetch product categories and stock data.
- Refactored `POSStore` to manage state for products, categories, and order items.
- Added utility functions for price formatting and number normalization.
- Included placeholder images for product and logo.

src/app/modules/purchases/components/receiptTemplate/purchase-receipt-template.component.ts

@@ -172,7 +172,6 @@ export class PurchaseReceiptTemplateComponent {
           return { ...res, productId: item.product?.id };
         }),
       } as IPurchaseRequest;
-      console.log(payload);
       this.form.disable();
 
       this.service.create(payload).subscribe({