nice admin layout, theming, filtering, users admin

contracts/admin.py

...rations/0010_alter_contractee_address_country_and_more.py

contracts/models.py

registry/settings/base.py

registry/templates/admin/base.html

registry/urls.py

requirements/base.txt

static_src/admin/admin_index_custom.css

users/admin.py

users/apps.py

users/migrations/0002_alter_user_options.py

users/models.py

users/urls.py