Return http response errors as json

Co-authored-by: Aarush Deshpande <[email protected]>

tin/apps/users/views.py

@@ -16,5 +16,5 @@ def change_theme(request):
             request.user.save()
             return http.JsonResponse({"success": True})
         else:
-            return http.JsonResponse({"success": False, "errors": form.errors}, status=400)
+            return http.JsonResponse({"success": False, "errors": form.errors.as_json()}, status=400)
     raise http.Http404