feat(demo): toggle production mode with checkbox

Co-authored-by: Javier Godoy <[email protected]>
Fixes #6

Author: ngonzalezpazFC

src/test/java/com/flowingcode/vaadin/addons/errorwindow/ErrorwindowDemoView.java

@@ -3,6 +3,7 @@
 import com.flowingcode.vaadin.addons.DemoLayout;
 import com.vaadin.flow.component.button.Button;
 import com.vaadin.flow.component.button.ButtonVariant;
+import com.vaadin.flow.component.checkbox.Checkbox;
 import com.vaadin.flow.component.html.Label;
 import com.vaadin.flow.component.html.Paragraph;
 import com.vaadin.flow.component.notification.Notification;
@@ -35,15 +36,15 @@ public ErrorwindowDemoView() {
 				w.open();
 			}
 		});
-
-		Button toggleProductionMode = new Button("Toggle production mode");
-		toggleProductionMode.addClickListener(ev->{
-			System.setProperty("productionMode",""+("false".equals(System.getProperty("productionMode"))));
+		
+		Checkbox productionModeCb = new Checkbox("Production Mode");
+		productionModeCb.addValueChangeListener(e -> {
+			System.setProperty("productionMode", "" + productionModeCb.getValue().toString());
 			Notification.show("Currently production mode is: " + System.getProperty("productionMode"));
 		});
-		
+
 		setSizeFull();
-		add(errorButton, throwErrorWithoutErrorHandler, throwErrorWithCustomMessage, toggleProductionMode);
+		add(productionModeCb, errorButton, throwErrorWithoutErrorHandler, throwErrorWithCustomMessage);
 	}
 
 }