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.Domain/Entities/Products.cs

@@ -30,13 +30,13 @@ public class Products : BaseAuditableEntity
     // ============= Navigation Properties =============
     
     //UserCarts Collection Navigation Reference
-    public virtual ICollection<UserCarts> UserCartss { get; set; }
-    //ProductGallerys Collection Navigation Reference
-    public virtual ICollection<ProductGallerys> ProductGalleryss { get; set; }
+    public virtual ICollection<UserCart> UserCarts { get; set; }
+    //ProductGalleries Collection Navigation Reference
+    public virtual ICollection<ProductGallery> ProductGalleries { get; set; }
     //FactorDetails Collection Navigation Reference
-    public virtual ICollection<FactorDetails> FactorDetailss { get; set; }
-    //PruductCategory Collection Navigation Reference
-    public virtual ICollection<PruductCategory> PruductCategorys { get; set; }
-    //PruductTag Collection Navigation Reference
-    public virtual ICollection<PruductTag> PruductTags { get; set; }
+    public virtual ICollection<FactorDetails> FactorDetails { get; set; }
+    //ProductCategory Collection Navigation Reference
+    public virtual ICollection<ProductCategory> ProductCategories { get; set; }
+    //ProductTag Collection Navigation Reference
+    public virtual ICollection<ProductTag> ProductTags { get; set; }
 }