Started implementing SFX

Fixed Shield animation jumps and secondary attack
Fixed demon wall stone behavior
Made overworld ambient sounds unpausable

Zennysoft.Game.Ma/src/ui/in_game_ui/InventoryMessageUI.cs

@@ -18,17 +18,6 @@ public partial class InventoryMessageUI : Control
     _labelSettings = GD.Load<LabelSettings>("res://src/ui/label_settings/InventoryFullAlertLabelSetting.tres");
   }
 
-  public async void DisplayInventoryFullMessage(string rejectedItemName)
-  {
-    var newLabel = new Label() { Text = $"Could not pick up {rejectedItemName}.", LabelSettings = _labelSettings };
-    MessageBox.AddChild(newLabel);
-
-    GetTree().CreateTimer(3f).Timeout += () =>
-    {
-      MessageBox.RemoveChild(newLabel);
-    };
-  }
-
   public async void DisplayMessage(string message)
   {
     var newLabel = new Label() { Text = message, LabelSettings = _labelSettings };