Add AutoMapper profile for EmailTemplate mappings

Introduced MappingProfile in EmailTemplates namespace.
Maps EmailTemplate to EmailTemplateDto and UpdateEmailTemplateCommand to EmailTemplate, ignoring Id and setting ChangedWhen to current time.

EnvelopeGenerator.Application/EmailTemplates/MappingProfile.cs

@@ -0,0 +1,24 @@
+using AutoMapper;
+using EnvelopeGenerator.Application.Common.Dto;
+using EnvelopeGenerator.Application.EmailTemplates.Commands;
+using EnvelopeGenerator.Domain.Entities;
+
+namespace EnvelopeGenerator.Application.EmailTemplates;
+
+/// <summary>
+///
+/// </summary>
+public class MappingProfile : Profile
+{
+    /// <summary>
+    ///
+    /// </summary>
+    public MappingProfile()
+    {
+        CreateMap<EmailTemplate, EmailTemplateDto>();
+
+        CreateMap<UpdateEmailTemplateCommand, EmailTemplate>()
+            .ForMember(dest => dest.Id, opt => opt.Ignore())
+            .ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(_ => DateTime.Now));
+    }
+}