add try catch to notification

app/resources/js/app.js

@@ -245,9 +245,14 @@ const app = new Vue({
 
             if (messageObject.author.username !== this.loggedInUser.username) {
                 if (Notification.permission === 'granted') {
+                    try {
                         new Notification(`${messageObject.category.title}/${messageObject.author.username}`, {
                             body: messageObject.content
                         });
+                    } catch(e) {
+                        console.log('[E] [chat] Failed to show notification');
+                    }
+
                 }
             }
         },