If the environment variable BAPI_ENV_PATH is set, the config system will
try to read configs from the given path instead of .env in pwd
If no file is found .env in pwd will be used as a fallback
Env variables will always override settings in .env files.
This is only useful for application running directly on the Raspiblitz.
This will create a file in ~/.blitz_api/.cookie with a valid JWT token.
Local applications can use this to authenticate to the API without
having to ask for the password. This is similar to how Bitcoin Cores
cookie auth works.
