feat: add header component with navigation and cart functionality

src/app/core/services/cart.service.ts

@@ -20,6 +20,8 @@ export class CartService {
     const response = await firstValueFrom(
       this.http.post<AddCartResponse>(`${API_BASE_URL}/cart`, request)
     );
+
+    //Note: can return always 1 because server has not SameSite=None. This will be taken as a third cookie, and the browser can ignore it.
     this.setCount(response.count);
     return response.count;
   }