add district menu / navbar blocks

district/blocks.py

district/migrations/0138_auto_20240509_1227.py

...39_remove_districthomepage_election_countdown_datetime.py

district/migrations/0140_alter_districthomepage_content.py

district/migrations/0141_alter_districthomepage_content.py

district/migrations/0142_auto_20240509_1227.py

...tions/0143_remove_districthomepage_show_calendar_on_hp.py

...ions/0144_remove_districthomepage_custom_logo_and_more.py

district/migrations/0145_auto_20240509_1642.py

district/models.py

district/templates/district/district_home_page.html

shared/models/main.py

...ed/static/styleguide2/images/district/logo-full-black.svg

...ed/static/styleguide2/images/district/logo-full-white.svg

shared/static/styleguide2/main.css

...tyleguide2/includes/organisms/layout/district/navbar.html

...e2/includes/organisms/main_section/district/calendar.html

...2/includes/organisms/main_section/newsletter_section.html