channels: chat room added

Author: JsExpertCoder

routes/channels.php

@@ -7,3 +7,7 @@
 Broadcast::channel('chat.{receiverId}', function (User $user, int $receiverId) {
     return (int) $user->id === (int) $receiverId;
 });
+
+Broadcast::channel('chat.room.{roomId}', function ($user, $roomId) {
+    return $user instanceof User;
+});