notification-store now saves wether the applications tab is focussed

src/main.ts

@@ -6,6 +6,7 @@ import App from './App.vue';
 import Keycloak from 'keycloak-js';
 import {useUserStore} from 'stores/user-store';
 import { useChatStore } from 'stores/chat-store';
+import { useNotificationStore } from './stores/notification-store';
 
 const app = createApp(App);
 const pinia = createPinia();
@@ -52,10 +53,24 @@ userStore.initKeycloak()
       chatStore.loadProfilePictures();
       userStore.loadProfilePictures();
 
+      Notification.requestPermission().then((result) => {
+        useNotificationStore().saveDecision(result === "granted");
+      });
+      
+
     } else {
       console.error("hier ist was schlimmes passiert menno");
     }
   }).catch(e=>console.error(e));
 
 
+  window.onfocus = function() {
+    useNotificationStore().isTabActive = true;
+  }
+
+  window.onblur = function() {
+    useNotificationStore().isTabActive = false;
+  }
+
+