set the main window icon

windows/WinUI/MainWindow.xaml

@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="WinUI.MainWindow"
-        Title="ZeroTier One" Height="495" Width="705">
+        Title="ZeroTier One" Height="495" Width="705" Icon="ZeroTierIcon.ico">
 	
 	<Window.Resources>
 		<ResourceDictionary>