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/UserProfileImageSelectorView.axaml.cs

@@ -0,0 +1,116 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Platform.Storage;
+using Avalonia.VisualTree;
+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 Ryujinx.HLE.FileSystem;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.Processing;
+using System.Collections.Generic;
+using System.IO;
+using Image = SixLabors.ImageSharp.Image;
+
+namespace Ryujinx.Ava.UI.Views.User
+{
+    public partial class UserProfileImageSelectorView : UserControl
+    {
+        private ContentManager _contentManager;
+        private NavigationDialogHost _parent;
+        private TempProfile _profile;
+
+        internal UserProfileImageSelectorViewModel ViewModel { get; private set; }
+
+        public UserProfileImageSelectorView()
+        {
+            InitializeComponent();
+            AddHandler(Frame.NavigatedToEvent, (s, e) =>
+            {
+                NavigatedTo(e);
+            }, RoutingStrategies.Direct);
+        }
+
+        private void NavigatedTo(NavigationEventArgs arg)
+        {
+            if (Program.PreviewerDetached)
+            {
+                switch (arg.NavigationMode)
+                {
+                    case NavigationMode.New:
+                        (_parent, _profile) = ((NavigationDialogHost, TempProfile))arg.Parameter;
+                        _contentManager = _parent.ContentManager;
+
+                        ((ContentDialog)_parent.Parent).Title = $"{LocaleManager.Instance[LocaleKeys.UserProfileWindowTitle]} - {LocaleManager.Instance[LocaleKeys.ProfileImageSelectionHeader]}";
+
+                        if (Program.PreviewerDetached)
+                        {
+                            DataContext = ViewModel = new UserProfileImageSelectorViewModel();
+                            ViewModel.FirmwareFound = _contentManager.GetCurrentFirmwareVersion() != null;
+                        }
+
+                        break;
+                    case NavigationMode.Back:
+                        if (_profile.Image != null)
+                        {
+                            _parent.GoBack();
+                        }
+                        break;
+                }
+            }
+        }
+
+        private async void Import_OnClick(object sender, RoutedEventArgs e)
+        {
+            var window = this.GetVisualRoot() as Window;
+            var result = await window.StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
+            {
+                AllowMultiple = false,
+                FileTypeFilter = new List<FilePickerFileType>
+                {
+                    new(LocaleManager.Instance[LocaleKeys.AllSupportedFormats])
+                    {
+                        Patterns = new[] { "*.jpg", "*.jpeg", "*.png", "*.bmp" },
+                        AppleUniformTypeIdentifiers = new[] { "public.jpeg", "public.png", "com.microsoft.bmp" },
+                        MimeTypes = new[] { "image/jpeg", "image/png", "image/bmp" },
+                    },
+                },
+            });
+
+            if (result.Count > 0)
+            {
+                _profile.Image = ProcessProfileImage(File.ReadAllBytes(result[0].Path.LocalPath));
+                _parent.GoBack();
+            }
+        }
+
+        private void GoBack(object sender, RoutedEventArgs e)
+        {
+            _parent.GoBack();
+        }
+
+        private void SelectFirmwareImage_OnClick(object sender, RoutedEventArgs e)
+        {
+            if (ViewModel.FirmwareFound)
+            {
+                _parent.Navigate(typeof(UserFirmwareAvatarSelectorView), (_parent, _profile));
+            }
+        }
+
+        private static byte[] ProcessProfileImage(byte[] buffer)
+        {
+            using Image image = Image.Load(buffer);
+
+            image.Mutate(x => x.Resize(256, 256));
+
+            using MemoryStream streamJpg = new();
+
+            image.SaveAsJpeg(streamJpg);
+
+            return streamJpg.ToArray();
+        }
+    }
+}