Rewrite how picking a matching audio session works

rewrite the UI layer to make it only send updates to the stream deck if needed

src/SoundBrowser/MainWindow.xaml

@@ -5,11 +5,15 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:SoundBrowser"
         mc:Ignorable="d"
-        Title="MainWindow" Height="150" Width="800">
+        Title="MainWindow" Height="800" Width="800">
     <Grid>
-        <StackPanel>
-        <TextBlock x:Name="_tf">blah</TextBlock>
-        </StackPanel>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="auto"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+
+        <TextBlock x:Name="_tf" Grid.Row="0">current</TextBlock>
+        <TextBlock x:Name="_tf2" Grid.Row="1">list</TextBlock>
 
     </Grid>
 </Window>