- drop jQuery and fontawesome dependencies
- add bootstrap5 and bootstrap-icons
- update fonts mfizz
- update base templates and the first set of other templates
- replace blocktrans and trans with blocktranslate and translate to
prepare for Django 4
- move hostingpakcage templates to hostingpackages/templates
- update translations
- modify userdbs.models.UserDatabase.delete to perform deletion of database
user if it has no other databases assigned
- implement userdbs.views.DeleteUserDatabase
- add URL pattern 'delete_userdatabase' to userdbs.urls
- add template userdbs/userdatabase_confirm_delete.html
- add link to 'delete_userdatabase' on hosting package detail page
- add changelog entry
