Move solution and projects to src

src/Ryujinx.Ava/UI/Views/Settings/SettingsInputView.axaml.cs

@@ -0,0 +1,17 @@
+using Avalonia.Controls;
+
+namespace Ryujinx.Ava.UI.Views.Settings
+{
+    public partial class SettingsInputView : UserControl
+    {
+        public SettingsInputView()
+        {
+            InitializeComponent();
+        }
+
+        public void Dispose()
+        {
+            ControllerSettings.Dispose();
+        }
+    }
+}