Make the frame size of the event button configurable

Author: shatyuka

CollapseLauncher/Classes/GameManagement/ImageBackground/ImageBackgroundManager.cs

@@ -302,10 +302,6 @@ private set
         }
     }
 
-    public double DesignWidth => 2560d;
-
-    public double DesignHeight => 1440d;
-
     /// <summary>
     /// The collection of image context sources.<br/><br/>
     /// Notes to Dev:<br/>

CollapseLauncher/Classes/Helper/Metadata/PresetConfig.cs

@@ -22,6 +22,7 @@
 using System.Text.Json.Serialization;
 using System.Threading;
 using System.Threading.Tasks;
+using Windows.Foundation;
 using WinRT;
 using static Hi3Helper.Logger;
 // ReSharper disable InconsistentNaming
@@ -94,6 +95,7 @@ public partial class GameEventButtonPosition
 
         public Thickness Position { get; init; } = new(256, 596, 0, 0);
         public double    VSize    { get; init; } = 80d;
+        public Size FrameSize { get; init; } = new(2560, 1440);
     }
 
     public class GameInstallFileInfo

CollapseLauncher/XAMLs/MainApp/Pages/HomePage.xaml

@@ -184,8 +184,8 @@
             <Grid x:Name="ImageEventImgContainerGrid"
                   DataContext="{x:Bind CurrentBackgroundManager, Mode=OneWay}"
                   Visibility="{Binding CurrentSelectedBackgroundContext.IsCustom, Mode=OneWay, Converter={StaticResource InverseBooleanVisibilityConverter}}">
-                <Grid Width="{Binding DesignWidth, Mode=OneWay}"
-                      Height="{Binding DesignHeight, Mode=OneWay}"
+                <Grid Width="{x:Bind CurrentPresetConfig.GameEventButtonPosition.FrameSize.Width, Mode=OneWay}"
+                      Height="{x:Bind CurrentPresetConfig.GameEventButtonPosition.FrameSize.Height, Mode=OneWay}"
                       HorizontalAlignment="Center"
                       VerticalAlignment="Center">
                     <Grid x:Name="ImageEventImg"