Slight rework of menu side buttons

ui/Menu.cs

@@ -5,14 +5,11 @@ public partial class Menu : CenterContainer
 
 	public override void _Ready()
 	{
-		foreach (var child in SideButtons.GetChildren())
+		foreach (var button in SideButtons.GetChildren().OfType<Button>())
-			if ((child is BaseButton button) && button.ToggleMode)
 			button.Pressed += () => {
 				for (var i = 0; i < Tabs.GetTabCount(); i++)
 					if (Tabs.GetTabControl(i).Name == button.Name)
 						Tabs.CurrentTab = i;
-					// Make sure you can't "detoggle" the button.
-					button.Disabled = true;
 			};
 	}
 
@@ -36,9 +33,8 @@ public partial class Menu : CenterContainer
 	public void OnTabChanged(int tabIndex)
 	{
 		var tabName = Tabs.GetTabControl(tabIndex).Name;
-		foreach (var child in SideButtons.GetChildren())
+		foreach (var button in SideButtons.GetChildren().OfType<Button>())
-			if ((child is BaseButton button) && button.ToggleMode)
+			button.Disabled = button.Name == tabName;
-				button.Disabled = button.ButtonPressed = button.Name == tabName;
 	}
 
 	public void OnReturnPressed()