Added notistack for crasy easy handling of notifications.

Notifications in the editor are handled again.
6 jobs for update_to_the_editor
Status Job ID Name Coverage
  Check
canceled #455270
docker
check_back

canceled #455271
docker
check_front

 
  Test
canceled #455272
docker
test_back

canceled #455273
docker
test_frontend

 
  Lint
canceled #455275
docker
eslint

canceled #455274
docker
flake8