infra: Make Avalonia the default UI (#6375)

* misc: Move Ryujinx project to Ryujinx.Gtk3

This breaks release CI for now but that's fine.

Signed-off-by: Mary Guillemard <mary@mary.zone>

* misc: Move Ryujinx.Ava project to Ryujinx

This breaks CI for now, but it's fine.

Signed-off-by: Mary Guillemard <mary@mary.zone>

* infra: Make Avalonia the default UI

Should fix CI after the previous changes.

GTK3 isn't build by the release job anymore, only by PR CI.

This also ensure that the test-ava update package is still generated to
allow update from the old testing channel.

Signed-off-by: Mary Guillemard <mary@mary.zone>

* Fix missing copy in create_app_bundle.sh

Signed-off-by: Mary Guillemard <mary@mary.zone>

* Fix syntax error

Signed-off-by: Mary Guillemard <mary@mary.zone>

---------

Signed-off-by: Mary Guillemard <mary@mary.zone>

src/Ryujinx/UI/Views/User/UserSelectorView.axaml.cs

@@ -0,0 +1,129 @@
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Interactivity;
+using FluentAvalonia.UI.Controls;
+using FluentAvalonia.UI.Navigation;
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Ava.UI.Controls;
+using Ryujinx.Ava.UI.Models;
+using Ryujinx.Ava.UI.ViewModels;
+using Button = Avalonia.Controls.Button;
+
+namespace Ryujinx.Ava.UI.Views.User
+{
+    public partial class UserSelectorViews : UserControl
+    {
+        private NavigationDialogHost _parent;
+
+        public UserProfileViewModel ViewModel { get; set; }
+
+        public UserSelectorViews()
+        {
+            InitializeComponent();
+
+            if (Program.PreviewerDetached)
+            {
+                AddHandler(Frame.NavigatedToEvent, (s, e) =>
+                {
+                    NavigatedTo(e);
+                }, RoutingStrategies.Direct);
+            }
+        }
+
+        private void NavigatedTo(NavigationEventArgs arg)
+        {
+            if (Program.PreviewerDetached)
+            {
+                if (arg.NavigationMode == NavigationMode.New)
+                {
+                    _parent = (NavigationDialogHost)arg.Parameter;
+                    ViewModel = _parent.ViewModel;
+                }
+
+                if (arg.NavigationMode == NavigationMode.Back)
+                {
+                    ((ContentDialog)_parent.Parent).Title = LocaleManager.Instance[LocaleKeys.UserProfileWindowTitle];
+                }
+
+                DataContext = ViewModel;
+            }
+        }
+
+        private void Grid_PointerEntered(object sender, PointerEventArgs e)
+        {
+            if (sender is Grid grid)
+            {
+                if (grid.DataContext is UserProfile profile)
+                {
+                    profile.IsPointerOver = true;
+                }
+            }
+        }
+
+        private void Grid_OnPointerExited(object sender, PointerEventArgs e)
+        {
+            if (sender is Grid grid)
+            {
+                if (grid.DataContext is UserProfile profile)
+                {
+                    profile.IsPointerOver = false;
+                }
+            }
+        }
+
+        private void ProfilesList_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if (sender is ListBox listBox)
+            {
+                int selectedIndex = listBox.SelectedIndex;
+
+                if (selectedIndex >= 0 && selectedIndex < ViewModel.Profiles.Count)
+                {
+                    if (ViewModel.Profiles[selectedIndex] is UserProfile userProfile)
+                    {
+                        _parent?.AccountManager?.OpenUser(userProfile.UserId);
+
+                        foreach (BaseModel profile in ViewModel.Profiles)
+                        {
+                            if (profile is UserProfile uProfile)
+                            {
+                                uProfile.UpdateState();
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        private void AddUser(object sender, RoutedEventArgs e)
+        {
+            _parent.AddUser();
+        }
+
+        private void EditUser(object sender, RoutedEventArgs e)
+        {
+            if (sender is Button button)
+            {
+                if (button.DataContext is UserProfile userProfile)
+                {
+                    _parent.EditUser(userProfile);
+                }
+            }
+        }
+
+        private void ManageSaves(object sender, RoutedEventArgs e)
+        {
+            _parent.ManageSaves();
+        }
+
+        private void RecoverLostAccounts(object sender, RoutedEventArgs e)
+        {
+            _parent.RecoverLostAccounts();
+        }
+
+        private void Close(object sender, RoutedEventArgs e)
+        {
+            ((ContentDialog)_parent.Parent).Hide();
+        }
+    }
+}