App issue: Invoice Ninja

[coffseducation]

ADD Environmental Variables to installer.

MAIL_MAILER="" eg smtp
MAIL_HOST=""
MAIL_PORT="" eg 465
MAIL_USERNAME=""
MAIL_PASSWORD=""
MAIL_ENCRYPTION="" eg ssl
MAIL_FROM_ADDRESS=""
MAIL_FROM_NAME="System"

These are required for email function which is essential to this app. As the docker images has no .env file these would be best added to the installer.
Failing that, add a note to the One Click app to notify the installer to add them to the Environmental Variables in ninja-app post installation.
Thanks.