Refactor name retrieval to use GetFullName method

Updated the `CertificateModel.vb` and `EmailData.vb` files to replace direct access to the `FullName` property with the `GetFullName()` method for retrieving creator, sender, and receiver names. This change enhances flexibility and maintains consistency across the codebase.

Additionally, added a new static `GetFullName` method in the `EGUserExtensions.cs` file to centralize the formatting of user names by concatenating the `Prename` and `Name` properties.

EnvelopeGenerator.CommonServices/Models/CertificateModel.vb

@@ -34,7 +34,7 @@ Public Class CertificateModel
             oCommand.Parameters.Add("ENVELOPE_UUID", SqlDbType.NVarChar).Value = pEnvelope.Uuid
             oCommand.Parameters.Add("ENVELOPE_SUBJECT", SqlDbType.NVarChar).Value = String.Empty
             oCommand.Parameters.Add("CREATOR_ID", SqlDbType.Int).Value = pEnvelope.UserId
-            oCommand.Parameters.Add("CREATOR_NAME", SqlDbType.NVarChar).Value = pEnvelope.User.FullName
+            oCommand.Parameters.Add("CREATOR_NAME", SqlDbType.NVarChar).Value = pEnvelope.User.GetFullName()
             oCommand.Parameters.Add("CREATOR_EMAIL", SqlDbType.NVarChar).Value = pEnvelope.User.Email
             oCommand.Parameters.Add("ENVELOPE_STATUS", SqlDbType.Int).Value = pEnvelope.Status
 

EnvelopeGenerator.CommonServices/Models/EmailData.vb

@@ -39,7 +39,7 @@ Public Class EmailData
         ReceiverName = pReceiver.Name
         ReceiverAccessCode = pReceiver.AccessCode
         SenderAdress = pEnvelope.User.Email
-        SenderName = pEnvelope.User.FullName
+        SenderName = pEnvelope.User.GetFullName()
         EnvelopeTitle = pEnvelope.Title
     End Sub
     Public Function TextToHtml(input As String) As String
@@ -72,10 +72,10 @@ Public Class EmailData
         Message = pEnvelope.Message
         ReferenceID = pEnvelope.Id
         ReferenceString = pEnvelope.Uuid
-        ReceiverName = pEnvelope.User.FullName
+        ReceiverName = pEnvelope.User.GetFullName()
         ReceiverAccessCode = String.Empty
         SenderAdress = pEnvelope.User.Email
-        SenderName = pEnvelope.User.FullName
+        SenderName = pEnvelope.User.GetFullName()
         EnvelopeTitle = pEnvelope.Title
     End Sub
 

EnvelopeGenerator.Domain/Entities/EGUserExtensions.cs

@@ -26,5 +26,7 @@ namespace EnvelopeGenerator.Domain.Entities
                 DeletedWho = user.DeletedWho
             };
         }
+
+        public static string GetFullName(this User user) => $"{user.Prename} {user.Name}";
     }
 }