Merge branch 'develop' into feature/fahrplan_assembly_sos

src/plainui/jinja2/plainui/assembly.html

src/plainui/jinja2/plainui/ccc_events.html

src/plainui/jinja2/plainui/components/badge_elements.html

src/plainui/jinja2/plainui/manage_badges.html

src/plainui/jinja2/plainui/profile.html

src/plainui/jinja2/plainui/user.html

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

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

src/plainui/views.py