Cleanup folder structure again

src/Imprink.Domain/Entities/Role.cs

@@ -0,0 +1,9 @@
+namespace Imprink.Domain.Entities;
+
+public class Role
+{
+    public Guid Id { get; set; }
+    public string RoleName { get; set; } = null!;
+        
+    public virtual ICollection<UserRole> UserRoles { get; set; } = new List<UserRole>();
+}