Add DEFAULT_AUTO_FIELD & use BigAutoField for it

Author: RadoRado

config/django/base.py

@@ -172,6 +172,8 @@
 
 APP_DOMAIN = env("APP_DOMAIN", default="http://localhost:8000")
 
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
 from config.settings.cors import *  # noqa
 from config.settings.jwt import *  # noqa
 from config.settings.sessions import *  # noqa