Merge branch 'cleanup_search' into 'django3_migration'

beat/web/search/__init__.py

beat/web/search/admin.py

beat/web/search/api.py

beat/web/search/apps.py

beat/web/search/fields.py

beat/web/search/management/commands/update_leaderboards.py

beat/web/search/migrations/0001_initial.py

beat/web/search/migrations/0002_scheduler_addons.py

beat/web/search/models.py

beat/web/search/serializers.py

beat/web/search/signals.py

beat/web/search/templates/search/leaderboard_deleted.txt

beat/web/search/templates/search/list.html

beat/web/search/templates/search/panels/breadcrumb.html

beat/web/search/templates/search/panels/results.html

beat/web/search/templates/search/panels/sharing.html

beat/web/search/templates/search/panels/table.html

beat/web/search/templates/search/view.html

beat/web/search/templatetags/search_tags.py

beat/web/search/utils.py