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.Infrastructure/Persistence/Configurations/UserAddressConfiguration.cs

@@ -13,7 +13,7 @@ public class UserAddressConfiguration : IEntityTypeConfiguration<UserAddress>
         builder.Property(entity => entity.Id).UseIdentityColumn();
         builder
             .HasOne(entity => entity.User)
-            .WithMany(entity => entity.UserAddresss)
+            .WithMany(entity => entity.UserAddresses)
             .HasForeignKey(entity => entity.UserId)
             .IsRequired(true);
         builder.Property(entity => entity.Title).IsRequired(true);