add $notificationId to every broadcast notification

app/Events/TaskDateUpdated.php

@@ -18,18 +18,20 @@ class TaskDateUpdated implements ShouldBroadcastNow
     public $event;
     public $start;
     public $end;
+    public $notificationId;
     protected $userId;
 
     /**
      * Create a new event instance.
      */
-    public function __construct($userId, Task $task, Event $event, $start, $end)
+    public function __construct($userId, Task $task, Event $event, $start, $end, $notificationId)
     {
         $this->userId = $userId;
         $this->task = $task;
         $this->event = $event;
         $this->start = $start;
         $this->end = $end;
+        $this->notificationId = $notificationId;
     }
 
     /**