handle primary action inputs

scripts/gui/ShovelButton.cs

@@ -50,6 +50,7 @@ public partial class ShovelButton : TextureButton
                     Disabled = true;
                 }
             }
+            GetViewport().SetInputAsHandled();
             hoveredEntity?.GetNode<FlashShaderController>("FlashController").Deselect();
             hoveredEntity = null;
             ButtonPressed = false;