Merge branch 'develop' into components/list_badges

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

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

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

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

src/backoffice/templates/backoffice/assembly_editlinks.html

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

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

src/core/management/commands/rerender_markdown.py

src/core/migrations/0041_description_html_fields1.py

src/core/migrations/0042_description_html_fields2.py

src/core/models/assemblies.py

src/core/models/events.py

src/core/models/rooms.py

src/core/models/users.py

src/core/tests/__init__.py

src/core/tests/markdown.py

src/core/utils.py

src/plainui/jinja2/plainui/assembly.html

src/plainui/jinja2/plainui/component_gallery.html

src/plainui/jinja2/plainui/fahrplan.html