Define DEFAULT_AUTO_FIELD on settings template

Since Django 3.0 default is BigAutoField

orchestra/conf/project_template/project_name/settings.py

@@ -143,6 +143,8 @@ DATABASES = {
     }
 }
 
+DEFAULT_AUTO_FIELD = 'django.db.models.AutoField'
+
 
 # Password validation
 # https://docs.djangoproject.com/en/{{ docs_version }}/ref/settings/#auth-password-validators
@@ -233,6 +235,7 @@ FLUENT_DASHBOARD_ICON_THEME = '../orchestra/icons'
 
 # Django-celery
 import djcelery
+
 djcelery.setup_loader()
 CELERYBEAT_SCHEDULER = 'djcelery.schedulers.DatabaseScheduler'