update demo-react-qr-code,

03_source/mobile/src/pages/DemoReactQrCode/components/NoQRCodes.jsx

@@ -0,0 +1,15 @@
+import { IonCol, IonRow, IonText } from '@ionic/react';
+
+export const NoQRCodes = () => (
+  <IonRow className="ion-text-center ion-justify-content-center">
+    <IonCol size="9">
+      <h3>It looks like you don't have any QR codes stored.</h3>
+      <img src="/assets/icon2.png" alt="icon" />
+
+      <p>
+        Click the <IonText color="primary">button</IonText> in the bottom right to scan a code or
+        generate a code.
+      </p>
+    </IonCol>
+  </IonRow>
+);