fix: Add TelegramWebhookView skeleton for POST handling

Introduces a new view class to manage Telegram webhook POST requests.
Lays the groundwork for processing incoming messages with a basic
placeholder returning HTTP 200 status. Future logic implementation
is pending.

msgio/views.py

@@ -1,2 +1,8 @@
+from django.http import HttpResponse
+from django.views import View
 
 
+class TelegramWebhookView(View):
+    def post(self, request, *args, **kwargs):
+        # TODO: Implement the logic to handle the incoming message
+        return HttpResponse(status=200)