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/Models/CheatNode.cs

@@ -0,0 +1,57 @@
+using Ryujinx.Ava.UI.ViewModels;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using System.Linq;
+
+namespace Ryujinx.Ava.UI.Models
+{
+    public class CheatNode : BaseModel
+    {
+        private bool _isEnabled = false;
+        public ObservableCollection<CheatNode> SubNodes { get; } = new();
+        public string CleanName => Name[1..^7];
+        public string BuildIdKey => $"{BuildId}-{Name}";
+        public bool IsRootNode { get; }
+        public string Name { get; }
+        public string BuildId { get; }
+        public string Path { get; }
+        public bool IsEnabled
+        {
+            get
+            {
+                if (SubNodes.Count > 0)
+                {
+                    return SubNodes.ToList().TrueForAll(x => x.IsEnabled);
+                }
+
+                return _isEnabled;
+            }
+            set
+            {
+                foreach (var cheat in SubNodes)
+                {
+                    cheat.IsEnabled = value;
+                    cheat.OnPropertyChanged();
+                }
+
+                _isEnabled = value;
+            }
+        }
+
+        public CheatNode(string name, string buildId, string path, bool isRootNode, bool isEnabled = false)
+        {
+            Name = name;
+            BuildId = buildId;
+            Path = path;
+            IsEnabled = isEnabled;
+            IsRootNode = isRootNode;
+
+            SubNodes.CollectionChanged += CheatsList_CollectionChanged;
+        }
+
+        private void CheatsList_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
+        {
+            OnPropertyChanged(nameof(IsEnabled));
+        }
+    }
+}