Merge branch 'feature/archive_mode' into 'develop'

src/hub/settings/base.py

src/plainui/jinja2.py

src/plainui/jinja2/plainui/badge_list.html.j2

src/plainui/jinja2/plainui/board.html

src/plainui/jinja2/plainui/components/function_btns.html

src/plainui/jinja2/plainui/components/nav.html

src/plainui/jinja2/plainui/login.html

src/plainui/jinja2/plainui/room.html

src/plainui/jinja2/plainui/signup.html

src/plainui/jinja2/plainui/static_page.html

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

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