Extend stepper example

Author: sven1103

Diff for: user-interface/src/main/bundles/prod.bundle

@@ -134,6 +134,20 @@ private static Div stepperDialogShowCase(List<Step> steps, String dialogTitle) {
     content.add(title);
     content.add(showDialog);
     content.addClassNames("flex-vertical", "gap-04");
+
+    Div confirmBox = new Div("Click the button and press 'Cancel' or 'Save'");
+    dialog.registerConfirmAction(() -> {
+      confirmBox.setText("Stepper dialog has been confirmed");
+      dialog.close();
+    });
+
+    dialog.registerCancelAction(() -> {
+      confirmBox.setText("Stepper dialog has been cancelled");
+      dialog.close();
+    });
+
+    content.add(confirmBox);
+
     return content;
   }
 

Diff for: user-interface/src/main/java/life/qbic/datamanager/views/demo/ComponentDemo.java

@@ -20,7 +20,7 @@ public class StepperDialog {
 
   private final AppDialog dialog;
   private final List<Step> steps;
-  private List<NavigationListener> navigationListeners;
+  private final List<NavigationListener> navigationListeners;
   private final int numberOfSteps;
   private int currentStep;
 

Diff for: user-interface/src/main/java/life/qbic/datamanager/views/general/dialog/stepper/StepperDialog.java

@@ -0,0 +1,2 @@
+# Support for editing Flow views with Copilot
+com.vaadin.experimental.copilotFlow=true

Diff for: user-interface/src/main/resources/vaadin-featureflags.properties

@@ -0,0 +1,9 @@
+import { UserConfigFn } from 'vite';
+import { overrideVaadinConfig } from './vite.generated';
+
+const customConfig: UserConfigFn = (env) => ({
+  // Here you can add custom Vite parameters
+  // https://vitejs.dev/config/
+});
+
+export default overrideVaadinConfig(customConfig);