Merge branch 'develop' into 'production'

.gitignore

deployment/postgres/init/init-db.sh

src/backoffice/locale/de/LC_MESSAGES/django.po

src/backoffice/locale/en/LC_MESSAGES/django.po

src/backoffice/static/bootstrap4/bootstrap.bundle.min.js

src/backoffice/static/bootstrap4/bootstrap.min.css

src/backoffice/static/bootstrap4/bootstrap.min.js

src/backoffice/static/jquery-3.4.1.min.js

src/backoffice/static/jquery-3.7.0.min.js

src/backoffice/templates/backoffice/assembly_edit.html

...ckoffice/templates/backoffice/assembly_edithierarchy.html

...ackoffice/templates/backoffice/assembly_team_toolbar.html

src/backoffice/templates/backoffice/base.html

src/backoffice/templates/backoffice/index.html

src/backoffice/urls.py

src/backoffice/views/assemblies.py

src/core/locale/de/LC_MESSAGES/django.po

src/core/locale/en/LC_MESSAGES/django.po

src/core/migrations/0092_conference_guest_access.py

src/core/models/conference.py