Improve mailto links handling (#310)

* Refactor draft creation

* try scoped namespace

* Refactor mailto protocol and revert namespaces

* Remove useless account query

* Fix typo and CC/BCC in replies

* Replace convert with existing extension

* Small fixes

* Fix CC/Bcc in replies to automatically show if needed.

* Fixed body parameter position from mailto parameters

* Fixed issue with ReplyAll self not removed

Wino.Core.Domain/Models/MailItem/DraftPreparationRequest.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Text.Json.Serialization;
+using MimeKit;
+using Wino.Core.Domain.Entities;
+using Wino.Core.Domain.Extensions;
+
+namespace Wino.Core.Domain.Models.MailItem;
+
+public class DraftPreparationRequest
+{
+    public DraftPreparationRequest(MailAccount account, MailCopy createdLocalDraftCopy, string base64EncodedMimeMessage, MailCopy referenceMailCopy = null)
+    {
+        Account = account ?? throw new ArgumentNullException(nameof(account));
+
+        CreatedLocalDraftCopy = createdLocalDraftCopy ?? throw new ArgumentNullException(nameof(createdLocalDraftCopy));
+        ReferenceMailCopy = referenceMailCopy;
+
+        // MimeMessage is not serializable with System.Text.Json. Convert to base64 string.
+        // This is additional work when deserialization needed, but not much to do atm.
+
+        Base64LocalDraftMimeMessage = base64EncodedMimeMessage;
+    }
+
+    [JsonConstructor]
+    private DraftPreparationRequest() { }
+
+    public MailCopy CreatedLocalDraftCopy { get; set; }
+
+    public MailCopy ReferenceMailCopy { get; set; }
+
+    public string Base64LocalDraftMimeMessage { get; set; }
+
+    [JsonIgnore]
+    private MimeMessage createdLocalDraftMimeMessage;
+
+    [JsonIgnore]
+    public MimeMessage CreatedLocalDraftMimeMessage
+    {
+        get
+        {
+            createdLocalDraftMimeMessage ??= Base64LocalDraftMimeMessage.GetMimeMessageFromBase64();
+
+            return createdLocalDraftMimeMessage;
+        }
+    }
+
+    public MailAccount Account { get; }
+}