Django 4.2

* updates Django to 4.x and other packages (if possible) to latest versions
* Attention: Requires postgresql >= 12.0
* updates code fragments to match requirements of newer package versions

konova/decorators.py

@@ -8,7 +8,7 @@ Created on: 16.11.20
 
 from functools import wraps
 
-from bootstrap_modal_forms.utils import is_ajax
+from bootstrap_modal_forms.mixins import is_ajax
 from django.contrib import messages
 from django.shortcuts import redirect, get_object_or_404, render
 from django.urls import reverse