fix: memory leak caused by animation

src/Views/LoadingIcon.axaml.cs

@@ -0,0 +1,27 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+namespace SourceGit.Views
+{
+    public partial class LoadingIcon : UserControl
+    {
+        public LoadingIcon()
+        {
+            IsHitTestVisible = false;
+            InitializeComponent();
+        }
+
+        protected override void OnLoaded(RoutedEventArgs e)
+        {
+            base.OnLoaded(e);
+            target.Classes.Add("rotating");
+        }
+
+        protected override void OnUnloaded(RoutedEventArgs e)
+        {
+            base.OnUnloaded(e);
+            target.Classes.Clear();
+        }
+    }
+}