Masquer popup QR à chaque changement d'écran

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/index.html

@@ -916,7 +916,7 @@
   </style>
 
   <script src="/js/websocket.js?v=16"></script>
-  <script src="/js/app.js?v=16"></script>
+  <script src="/js/app.js?v=17"></script>
   <script src="/js/camera.js?v=15"></script>
   <script src="/js/effects.js?v=4"></script>
   <script src="/js/gallery.js?v=3"></script>

frontend/js/app.js

@@ -104,6 +104,9 @@ function allerA(ecran) {
     ecranActuel = ecran;
   }
 
+  // Masquer le popup QR a chaque changement d'ecran
+  fermerQR();
+
   // Actions au changement d'ecran
   if (ecran === 'accueil') {
     photosSession = [];