Removed wrong nullable type CompanyName

Author: claudioig

NorthwindCRUD/Models/Contracts/ICustomer.cs

@@ -6,7 +6,7 @@ public interface ICustomer
     {
         string CustomerId { get; set; }
 
-        string? CompanyName { get; set; }
+        string CompanyName { get; set; }
 
         string ContactName { get; set; }
 

NorthwindCRUD/Models/DbModels/CustomerDb.cs

@@ -10,7 +10,7 @@ public class CustomerDb : ICustomer
         [DatabaseGenerated(DatabaseGeneratedOption.None)]
         public string CustomerId { get; set; }
 
-        public string? CompanyName { get; set; }
+        public string CompanyName { get; set; }
 
         public string ContactName { get; set; }
 

NorthwindCRUD/Models/Dtos/CustomerDto.cs

@@ -8,7 +8,7 @@ public class CustomerDto : ICustomer
         public string CustomerId { get; set; }
 
         [Required]
-        public string? CompanyName { get; set; }
+        public string CompanyName { get; set; }
 
         public string ContactName { get; set; }