Fix prod ajax issue

[2023-10-17 14:16:17,851] | WARNING  | django.request | Not Found: /api/survey/forms/a4123541-dea0-4468-81ac-d3f85e3e81fa
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/usr/local/lib/python3.9/site-packages/django/core/handlers/base.py", line 188, in _get_response
    self.check_response(response, callback)
  File "/usr/local/lib/python3.9/site-packages/django/core/handlers/base.py", line 309, in check_response
    raise ValueError(
ValueError: The view survey.forms.views.Api didn't return an HttpResponse object. It returned None instead.

todo: remove check ajax from view