New attachment templates that support saving and opening attachment when composing message.

Wino.Core.Domain/Models/Common/SharedFile.cs

@@ -0,0 +1,14 @@
+using System.IO;
+
+namespace Wino.Core.Domain.Models.Common
+{
+    /// <summary>
+    /// Abstraction for StorageFile
+    /// </summary>
+    /// <param name="FullFilePath">Full path of the file.</param>
+    /// <param name="Data">Content</param>
+    public record SharedFile(string FullFilePath, byte[] Data)
+    {
+        public string FileName => Path.GetFileName(FullFilePath);
+    }
+}