Fix some index out of range errors

Closes #601

pyrogram/client.py

@@ -585,6 +585,7 @@ class Client(Methods, Scaffold):
                     {c.id: c for c in diff.chats}
                 ))
             else:
+                if diff.other_updates:  # The other_updates list can be empty
                     self.dispatcher.updates_queue.put_nowait((diff.other_updates[0], {}, {}))
         elif isinstance(updates, raw.types.UpdateShort):
             self.dispatcher.updates_queue.put_nowait((updates.update, {}, {}))

pyrogram/handlers/deleted_messages_handler.py

@@ -52,4 +52,4 @@ class DeletedMessagesHandler(Handler):
         super().__init__(callback, filters)
 
     async def check(self, client: "pyrogram.Client", messages: List[Message]):
-        return await super().check(client, messages[0])
+        return await super().check(client, messages[0]) if messages else False  # The messages list can be empty