Scripting - Add confirm dialog when discarding changes

Editor - Fix missing repeat mode button
Editor - Auto-save 1 sec after last change
General UI - Fix main window drag handle

src/Artemis.UI/Screens/Scripting/ScriptsDialogView.axaml.cs

@@ -1,4 +1,5 @@
-using Avalonia;
+using System.ComponentModel;
+using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
 
@@ -6,12 +7,28 @@ namespace Artemis.UI.Screens.Scripting;
 
 public partial class ScriptsDialogView : ReactiveCoreWindow<ScriptsDialogViewModel>
 {
+    private bool _canClose;
+
     public ScriptsDialogView()
     {
         InitializeComponent();
 #if DEBUG
         this.AttachDevTools();
 #endif
+        Closing += OnClosing;
+    }
+
+    private async void OnClosing(object? sender, CancelEventArgs e)
+    {
+        if (_canClose)
+            return;
+        
+        e.Cancel = true;
+        if (ViewModel == null || await ViewModel.CanClose())
+        {
+            _canClose = true;
+            Close();
+        }
     }
 
     private void InitializeComponent()