The purpose of this code is to prevent anyone who can access to
the initial setup screen from creating an admin user
Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
The builtin two-factor authentication is based on time-based one time
passwords (RFC 6238) which works with Authy, Google Authenticator and
other compatible apps.
If you prefer to auto-create the first admin you can enable the
"create_default_admin" configuration key and SFTPGo will work as before.
You can also create the first admin by loading initial data: now you can
set both username and password, before you could only change the password
