Avalonia: Another Cleanup (#3494)

* Avalonia: Another Cleanup

This PR is a cleanup to the avalonia code recently added:

- Some XAML file are autoformatted like a previous PR.
- Dlc is renamed to DownloadableContent (Locale exclude).
- DownloadableContentManagerWindow is a bit improved (Fixes #3491).
- Some nits here and there.

* Fix GTK

* Remove AttachDebugDevTools

* Fix last warning

* Fix JSON fields

Ryujinx.Ava/Ui/Windows/CheatWindow.axaml

@@ -1,21 +1,24 @@
-<window:StyleableWindow x:Class="Ryujinx.Ava.Ui.Windows.CheatWindow"
-                        xmlns="https://github.com/avaloniaui"
-                        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-                        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-                        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-                        xmlns:locale="clr-namespace:Ryujinx.Ava.Common.Locale"
-                        xmlns:model="clr-namespace:Ryujinx.Ava.Ui.Models"
-                        xmlns:window="clr-namespace:Ryujinx.Ava.Ui.Windows"
-                        mc:Ignorable="d"
-                        Width="500" MinHeight="500" Height="500"
-                        WindowStartupLocation="CenterOwner"
-                        MinWidth="500">
+<window:StyleableWindow
+    x:Class="Ryujinx.Ava.Ui.Windows.CheatWindow"
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:locale="clr-namespace:Ryujinx.Ava.Common.Locale"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:model="clr-namespace:Ryujinx.Ava.Ui.Models"
+    xmlns:window="clr-namespace:Ryujinx.Ava.Ui.Windows"
+    Width="500"
+    Height="500"
+    MinWidth="500"
+    MinHeight="500"
+    WindowStartupLocation="CenterOwner"
+    mc:Ignorable="d">
     <Window.Styles>
         <Style Selector="TreeViewItem">
             <Setter Property="IsExpanded" Value="True" />
         </Style>
     </Window.Styles>
-    <Grid Name="DlcGrid" Margin="15">
+    <Grid Name="CheatGrid" Margin="15">
         <Grid.RowDefinitions>
             <RowDefinition Height="Auto" />
             <RowDefinition Height="Auto" />
@@ -24,14 +27,14 @@
         </Grid.RowDefinitions>
         <TextBlock
             Grid.Row="1"
+            MaxWidth="500"
             Margin="20,15,20,20"
             HorizontalAlignment="Center"
             VerticalAlignment="Center"
-            MaxWidth="500"
             LineHeight="18"
-            TextWrapping="Wrap"
             Text="{Binding Heading}"
-            TextAlignment="Center" />
+            TextAlignment="Center"
+            TextWrapping="Wrap" />
         <Border
             Grid.Row="2"
             Margin="5"
@@ -39,32 +42,38 @@
             VerticalAlignment="Stretch"
             BorderBrush="Gray"
             BorderThickness="1">
-            <TreeView Items="{Binding LoadedCheats}"
-                      HorizontalAlignment="Stretch"
-                      VerticalAlignment="Stretch"
-                      Name="CheatsView"
-                      MinHeight="300">
+            <TreeView
+                Name="CheatsView"
+                MinHeight="300"
+                HorizontalAlignment="Stretch"
+                VerticalAlignment="Stretch"
+                Items="{Binding LoadedCheats}">
                 <TreeView.Styles>
                     <Styles>
                         <Style Selector="TreeViewItem:empty /template/ ItemsPresenter">
-                            <Setter Property="IsVisible" Value="False"/>
+                            <Setter Property="IsVisible" Value="False" />
                         </Style>
                     </Styles>
                 </TreeView.Styles>
                 <TreeView.DataTemplates>
                     <TreeDataTemplate DataType="model:CheatsList" ItemsSource="{Binding}">
                         <StackPanel HorizontalAlignment="Left" Orientation="Horizontal">
-                            <CheckBox IsChecked="{Binding IsEnabled}" MinWidth="20" />
-                            <TextBlock Width="150"
-                                       Text="{Binding BuildId}" />
-                            <TextBlock
-                                Text="{Binding Path}" />
+                            <CheckBox MinWidth="20" IsChecked="{Binding IsEnabled}" />
+                            <TextBlock Width="150" Text="{Binding BuildId}" />
+                            <TextBlock Text="{Binding Path}" />
                         </StackPanel>
                     </TreeDataTemplate>
                     <DataTemplate x:DataType="model:CheatModel">
-                        <StackPanel Orientation="Horizontal" Margin="0" HorizontalAlignment="Left">
-                            <CheckBox IsChecked="{Binding IsEnabled}" Padding="0" Margin="5,0" MinWidth="20" />
-                            <TextBlock Text="{Binding CleanName}" VerticalAlignment="Center" />
+                        <StackPanel
+                            Margin="0"
+                            HorizontalAlignment="Left"
+                            Orientation="Horizontal">
+                            <CheckBox
+                                MinWidth="20"
+                                Margin="5,0"
+                                Padding="0"
+                                IsChecked="{Binding IsEnabled}" />
+                            <TextBlock VerticalAlignment="Center" Text="{Binding CleanName}" />
                         </StackPanel>
                     </DataTemplate>
                 </TreeView.DataTemplates>
@@ -79,8 +88,8 @@
                     Name="SaveButton"
                     MinWidth="90"
                     Margin="5"
-                    IsVisible="{Binding !NoCheatsFound}"
-                    Command="{Binding Save}">
+                    Command="{Binding Save}"
+                    IsVisible="{Binding !NoCheatsFound}">
                     <TextBlock Text="{locale:Locale SettingsButtonSave}" />
                 </Button>
                 <Button