UI: Add program icon to windows other than the main

src/Ryujinx/UI/Windows/DownloadableContentManagerWindow.axaml

@@ -17,13 +17,7 @@
     <UserControl.Resources>
         <helpers:DownloadableContentLabelConverter x:Key="DownloadableContentLabel" />
     </UserControl.Resources>
-    <Grid>
-        <Grid.RowDefinitions>
-            <RowDefinition Height="Auto" />
-            <RowDefinition Height="Auto" />
-            <RowDefinition Height="*" />
-            <RowDefinition Height="Auto" />
-        </Grid.RowDefinitions>
+    <Grid RowDefinitions="Auto,Auto,*,Auto">
         <StackPanel
             Grid.Row="0"
             Margin="0 0 0 10"
@@ -44,12 +38,7 @@
         <Panel
             Margin="0 0 0 10"
             Grid.Row="1">
-            <Grid>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="Auto" />
-                    <ColumnDefinition Width="Auto" />
-                    <ColumnDefinition Width="*" />
-                </Grid.ColumnDefinitions>
+            <Grid ColumnDefinitions="Auto,Auto,*">
                 <TextBlock
                     Grid.Column="0"
                     Text="{Binding UpdateCount}" />
@@ -101,17 +90,9 @@
                     <DataTemplate
                         DataType="models:DownloadableContentModel">
                         <Panel Margin="10">
-                            <Grid>
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition Width="*" />
-                                    <ColumnDefinition Width="Auto" />
-                                </Grid.ColumnDefinitions>
+                            <Grid ColumnDefinitions="*,Auto">
                                 <Grid
-                                    Grid.Column="0">
-                                    <Grid.ColumnDefinitions>
-                                        <ColumnDefinition Width="*" />
-                                        <ColumnDefinition Width="Auto" />
-                                    </Grid.ColumnDefinitions>
+                                    Grid.Column="0" ColumnDefinitions="*,Auto">
                                     <TextBlock
                                         Grid.Column="0"
                                         HorizontalAlignment="Left"

src/Ryujinx/UI/Windows/MainWindow.axaml

@@ -21,7 +21,6 @@
     x:DataType="viewModels:MainWindowViewModel"
     mc:Ignorable="d"
     WindowStartupLocation="Manual"
-    Icon="resm:Ryujinx.UI.Common.Resources.Logo_Ryujinx.png?assembly=Ryujinx.UI.Common"
     Focusable="True">
     <Window.Styles>
         <Style Selector="TitleBar:fullscreen">

src/Ryujinx/UI/Windows/MainWindow.axaml.cs

@@ -84,7 +84,6 @@ namespace Ryujinx.Ava.UI.Windows
             TitleBar.ExtendsContentIntoTitleBar = true;
             TitleBar.TitleBarHitTestType = TitleBarHitTestType.Complex;
 
-
             // NOTE: Height of MenuBar and StatusBar is not usable here, since it would still be 0 at this point.
             StatusBarHeight = StatusBarView.StatusBar.MinHeight;
             MenuBarHeight = MenuBar.MinHeight;
@@ -98,7 +97,7 @@ namespace Ryujinx.Ava.UI.Windows
             {
                 InputManager = new InputManager(new AvaloniaKeyboardDriver(this), new SDL2GamepadDriver());
 
-                this.GetObservable(IsActiveProperty).Subscribe(IsActiveChanged);
+                _ = this.GetObservable(IsActiveProperty).Subscribe(it => ViewModel.IsActive = it);
                 this.ScalingChanged += OnScalingChanged;
             }
         }
@@ -106,7 +105,7 @@ namespace Ryujinx.Ava.UI.Windows
         /// <summary>
         /// Event handler for detecting OS theme change when using "Follow OS theme" option
         /// </summary>
-        private void OnPlatformColorValuesChanged(object sender, PlatformColorValues e)
+        private static void OnPlatformColorValuesChanged(object sender, PlatformColorValues e)
         {
             if (Application.Current is App app)
                 app.ApplyConfiguredTheme();
@@ -128,11 +127,6 @@ namespace Ryujinx.Ava.UI.Windows
             NotificationHelper.SetNotificationManager(this);
         }
 
-        private void IsActiveChanged(bool obj)
-        {
-            ViewModel.IsActive = obj;
-        }
-
         private void OnScalingChanged(object sender, EventArgs e)
         {
             Program.DesktopScaleFactor = this.RenderScaling;
@@ -355,7 +349,7 @@ namespace Ryujinx.Ava.UI.Windows
                 await Dispatcher.UIThread.InvokeAsync(async () => await UserErrorDialog.ShowUserErrorDialog(UserError.NoKeys));
             }
 
-            if (ConfigurationState.Instance.CheckUpdatesOnStart.Value && Updater.CanUpdate(false))
+            if (ConfigurationState.Instance.CheckUpdatesOnStart && Updater.CanUpdate(false))
             {
                 await Updater.BeginParse(this, false).ContinueWith(task =>
                 {

src/Ryujinx/UI/Windows/StyleableWindow.cs

@@ -4,6 +4,7 @@ using Avalonia.Media;
 using Avalonia.Platform;
 using FluentAvalonia.UI.Windowing;
 using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.ViewModels;
 
 namespace Ryujinx.Ava.UI.Windows
 {
@@ -16,6 +17,8 @@ namespace Ryujinx.Ava.UI.Windows
 
             LocaleManager.Instance.LocaleChanged += LocaleChanged;
             LocaleChanged();
+            
+            Icon = MainWindowViewModel.IconBitmap;
         }
 
         private void LocaleChanged()
@@ -40,6 +43,8 @@ namespace Ryujinx.Ava.UI.Windows
 
             LocaleManager.Instance.LocaleChanged += LocaleChanged;
             LocaleChanged();
+
+            Icon = new WindowIcon(MainWindowViewModel.IconBitmap);
         }
 
         private void LocaleChanged()