Add version display in settings

Views/Settings.xaml

@@ -8,12 +8,21 @@
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     mc:Ignorable="d">
 
-    <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
-        <InfoBar x:Name="InfoBar" IsOpen="True" Severity="Informational" IsClosable="False">
+
+    <Grid HorizontalAlignment="Center">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="Auto"/>
+        </Grid.RowDefinitions>
+        <InfoBar Grid.Row="1" x:Name="InfoBar" IsOpen="True" Severity="Informational" IsClosable="False">
             <StackPanel Padding="32,32,32,32">
                 <TextBlock HorizontalAlignment="Center" Text="There's nothing here yet..."></TextBlock>
                 <HyperlinkButton NavigateUri="https://github.com/uwu/tailscale-client/issues" Content="Have a suggestion? Let us know."></HyperlinkButton>
             </StackPanel>
         </InfoBar>
-    </StackPanel>
+
+        <TextBlock Grid.Row="3" Margin="0,0,0,32" HorizontalAlignment="Center" Text="{x:Bind Version, Mode=OneTime}"></TextBlock>
+    </Grid>
 </Page>

Views/Settings.xaml.cs

@@ -1,29 +1,28 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Runtime.InteropServices.WindowsRuntime;
-using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
-using Microsoft.UI.Xaml.Controls.Primitives;
-using Microsoft.UI.Xaml.Data;
-using Microsoft.UI.Xaml.Input;
-using Microsoft.UI.Xaml.Media;
-using Microsoft.UI.Xaml.Navigation;
-using Windows.Foundation;
-using Windows.Foundation.Collections;
-
-// To learn more about WinUI, the WinUI project structure,
-// and more about our project templates, see: http://aka.ms/winui-project-info.
+using Windows.ApplicationModel;
 
 namespace TailscaleClient.Views;
-/// <summary>
-/// An empty page that can be used on its own or navigated to within a Frame.
-/// </summary>
+
 public sealed partial class Settings : Page
 {
+    private readonly string Version;
+
+    public static string GetAppVersion()
+    {
+        try
+        {
+            var version = Package.Current.Id.Version;
+            return string.Format("{0}.{1}.{2}", version.Major, version.Minor, version.Build);
+        }
+        catch
+        {
+            return "Unpackaged build";
+        }
+    }
+
     public Settings()
     {
         this.InitializeComponent();
+        Version = GetAppVersion();
     }
 }