Add validators and services for Product Galleries and Product Tags

- Implemented Create, Delete, Get, and Update validators for Product Galleries.
- Added Create, Delete, Get, and Update validators for Product Tags.
- Created service classes for handling Discount Categories, Discount Orders, Discount Products, Discount Shopping Cart, Product Categories, Product Galleries, and Product Tags.
- Each service class integrates with CQRS for command and query handling.
- Established mapping profiles for Product Galleries.

src/CMSMicroservice.Application/UserOrderCQ/Queries/GetUserOrder/GetUserOrderQueryHandler.cs

@@ -14,7 +14,7 @@ public class GetUserOrderQueryHandler : IRequestHandler<GetUserOrderQuery, GetUs
         var response = await _context.UserOrders
             .Include(i => i.UserAddress)
             .Include(i => i.User)
-            .Include(i => i.FactorDetailss)
+            .Include(i => i.FactorDetails)
                 .ThenInclude(t => t.Product)
             .AsNoTracking()
             .Where(x => x.Id == request.Id)
@@ -30,7 +30,7 @@ public class GetUserOrderQueryHandler : IRequestHandler<GetUserOrderQuery, GetUs
                 UserAddressId = x.UserAddressId,
                 PaymentMethod = x.PaymentMethod,
                 UserAddressText = x.UserAddress.Address,
-                FactorDetails = x.FactorDetailss.Select(fd => new GetUserOrderResponseFactorDetail
+                FactorDetails = x.FactorDetails.Select(fd => new GetUserOrderResponseFactorDetail
                 {
                     ProductId = fd.ProductId,
                     ProductTitle = fd.Product.Title,