Merge branch 'migration-django-4-2' into 'main'

[Draft] nk20 v2.0.0 with django 4.2

See merge request bde/nk20!230

apps/activity/templates/activity/activity_form.html

@@ -17,24 +17,4 @@ SPDX-License-Identifier: GPL-3.0-or-later
     </form>
   </div>
 </div>
-<script>
+{% endblock %}
-  var date_end = document.getElementById("id_date_end");
-  var date_start = document.getElementById("id_date_start");
-  
-  function update_date_end (){
-    if(date_end.value=="" || date_end.value<date_start.value){
-      date_end.value = date_start.value;
-    };
-  };
-  
-  function update_date_start (){
-    if(date_start.value=="" || date_end.value<date_start.value){
-      date_start.value = date_end.value;
-    };
-  };
-  
-  date_start.addEventListener('focusout', update_date_end);
-  date_end.addEventListener('focusout', update_date_start);
-  
-</script>
-{% endblock %}