Manage Permission denied

[pprados]

Il the access of .env file is refused, a PermissionError is raise.

It's the case with firejail to protect the access of .env files.

The code may tolerate this situation and continue to search another one.

[pprados]

In main.py, update the line 55 with

if self.dotenv_path and os.path.isfile(self.dotenv_path) and os.access(self.dotenv_path,os.R_OK):