Update Microsoft.Toolkit.Uwp.SampleApp/Models/Sample.cs

Co-authored-by: Michael Hawker MSFT (XAML Llama) <24302614+michael-hawker@users.noreply.github.com>

Author: azchohfi

Microsoft.Toolkit.Uwp.SampleApp/Models/Sample.cs

@@ -647,7 +647,8 @@ private static Type LookForTypeByName(string typeName)
                 DataGridGridLinesVisibility.None.GetType(), // Microsoft.Toolkit.Uwp.UI.Controls.DataGrid
                 GridSplitter.GridResizeDirection.Auto.GetType(), // Microsoft.Toolkit.Uwp.UI.Controls.Layout
                 typeof(MarkdownTextBlock), // Microsoft.Toolkit.Uwp.UI.Controls.Markdown
-                typeof(AlphaMode), // Microsoft.Toolkit.Uwp.UI.Controls.Media
+                BitmapFileFormat.Bmp.GetType(), // Microsoft.Toolkit.Uwp.UI.Controls.Media
+                typeof(AlphaMode), // Microsoft.Toolkit.Uwp.UI.Media
                 StretchChild.Last.GetType() // Microsoft.Toolkit.Uwp.UI.Controls.Primitivs
             };