Remove buttons and colors from models, admin, serializers and fixtures

fixtures/program/category.json

fixtures/program/musicfocus.json

fixtures/program/topic.json

fixtures/program/type.json

program/admin.py

program/forms.py

program/migrations/0004_auto_20220111_1806.py

program/migrations/0005_auto_20220111_2251.py

program/models.py

program/serializers.py