Update MainView.axaml

samples/AvaloniaDemo.Base/MainView.axaml

@@ -4,7 +4,8 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:paz="using:Avalonia.Controls.PanAndZoom"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="AvaloniaDemo.MainView">
+             x:Class="AvaloniaDemo.MainView"
+             FontFamily="avares://Avalonia.Themes.Fluent/Assets#Inter">
 
   <UserControl.Styles>
     <Style Selector="Label">