Completely integrate wepack in django

* Migrate alpine
* Migrate jquery and jquery-ui
* Migrate shorten
* Add babel for javascript
* Introduce staticfiles django app
* Only bundle -index.js files in static/webpack
* Unify scss and webpack generated files
* Convert scss calls to static
* Add --clear-generated option to collectstatic
* Fix docs warnings

.github/workflows/deploy.yml

@@ -39,9 +39,10 @@ jobs:
           git fetch
           git reset --hard origin/master
           poetry install --with prod --without docs,tests
+          npm install
           poetry run ./manage.py install_xapian
           poetry run ./manage.py migrate
-          poetry run ./manage.py collectstatic --clear --noinput
+          poetry run ./manage.py collectstatic --clear --clear-generated --noinput
           poetry run ./manage.py compilemessages
 
           sudo systemctl restart uwsgi