fix: draw border around dialogs

Author: tuxuser

PostCodeSerialMonitor/App.axaml

@@ -37,7 +37,7 @@
         <FluentTheme />
         <Style Selector="Window">
             <Setter Property="TransparencyLevelHint" Value="AcrylicBlur" />
-            <Setter Property="BorderBrush" Value="White" />
+            <Setter Property="BorderBrush" Value="{DynamicResource SystemAccentColor}" />
             <Setter Property="BorderThickness" Value="1" />
         </Style>
         <Style Selector="SelectableTextBlock">

PostCodeSerialMonitor/Views/ConfigurationDialog.axaml

@@ -11,6 +11,7 @@
         Width="400" Height="600"
         WindowStartupLocation="CenterOwner">
 
+    <Border BorderBrush="{DynamicResource SystemAccentColor}" BorderThickness="1">
     <Grid RowDefinitions="*,Auto" Margin="10">
         <ScrollViewer Grid.Row="0">
             <StackPanel Spacing="10">
@@ -51,4 +52,5 @@
             <Button Content="{x:Static assets:Resources.Save}" Command="{Binding SaveCommand}" CommandParameter="{Binding $parent[Window]}"/>
         </StackPanel>
     </Grid>
+    </Border>
 </Window>

PostCodeSerialMonitor/Views/DebugDialog.axaml

@@ -11,6 +11,7 @@
         Width="480" Height="620"
         WindowStartupLocation="CenterOwner">
 
+    <Border BorderBrush="{DynamicResource SystemAccentColor}" BorderThickness="1">
     <Grid RowDefinitions="*,Auto" Margin="10">
         <ScrollViewer Grid.Row="0">
             <StackPanel Spacing="10">
@@ -42,4 +43,5 @@
             <Button Content="{x:Static assets:Resources.Close}" Command="{Binding CloseCommand}" CommandParameter="{Binding $parent[Window]}"/>
         </StackPanel>
     </Grid>
+    </Border>
 </Window>