Create successful migrations

calendar_utils/migrations/0005_calendarpage.py

calendar_utils/models.py

...rations/0107_districtcenterpage_calendar_page_and_more.py

...igrations/0054_elections2021calendarpage_calendar_page.py

...gn/migrations/0011_senatcampaignhomepage_calendar_page.py

uniweb/migrations/0040_uniwebhomepage_calendar_page.py