OIDC changes

#29
Now you can disable the default login form, this will also disable password field in the setup_profile page when auto-registration is enabled.
To allow that change the ENABLE_DEFAULT_LOGIN value in the .env via /setup or a text editor.
true = login form is present
false = login form disabled and a new template with only OIDC login will be present.
This is need to allow logout and redirect if auto-registration not enabled.

.env path (docker)

Now the .env will be stored in the /data folder which is mounted with docker, this allow to keep it even when updating the container.
If the file is not present at the start, it will prepolulate one with the default values.

This new version is changing the .env location make sure you put the file in the right place.