Fix a bug in ProduceSummaryPanel rendering.

src/main/lombok/org/leumasjaffe/recipe/view/ProductSummaryPanel.java

@@ -44,7 +44,7 @@ public class ProductSummaryPanel extends JPanel {
 		
 		listener = new ObservableListener<>(panel, (c, t) -> {
 			c.removeAll();
-			product.getIngredientsAsStream().map(SummaryIngredientPanel::new).forEach(c::add);
+			product.getIngredients().stream().map(SummaryIngredientPanel::new).forEach(c::add);
 		});
 		listener.setObserved(product);
 	}