delete redundant codes

src/Shared/HandyControlDemo_Shared/Window/GlowWindow.xaml

@@ -1,4 +1,4 @@
-<Window x:Class="HandyControlDemo.Window.GlowWindow"
+<hc:GlowWindow x:Class="HandyControlDemo.Window.GlowWindow"
                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"
@@ -6,12 +6,12 @@
                xmlns:hc="https://handyorg.github.io/handycontrol"
                xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
                mc:Ignorable="d"
+               Background="{DynamicResource MainContentBackgroundBrush}"
                WindowStartupLocation="CenterScreen"
                Title="{x:Static langs:Lang.Title}"
+               ActiveGlowColor="{DynamicResource PrimaryColor}"
                Height="450" 
                Width="800" 
                Icon="/HandyControlDemo;component/Resources/Img/icon.ico">
-    <Grid>
-        
-    </Grid>
-</Window>
+    <Border Background="{DynamicResource MainContentForegroundDrawingBrush}"/>
+</hc:GlowWindow>