rename content into message for notifications

src/utils/echo/listeners/userNotificationsListener.js

@@ -6,9 +6,9 @@ export const userNotificationsListener = (echo, userData, setNotifications, setU
         .notification((notification) => {
             const newNotification = {
                 id:         notification.id,
-                content:    notification.message,
+                data:       { message: notification.message },
+                read_at:    null,
                 created_at: new Date().toISOString(),
-                pivot:      { unread: 1 }
             };
 
             setNotifications(prev => [newNotification, ...prev]);