pleroma.instance gen static gen don't create files without raising an error
While creating a instance config with mix pleroma.instance gen
it prompts questions.
When it asks where should be store static files, to provide ~/instance/static
don't create files such as robot.txt
in ~/instance/static
because that directories isn't created.
Even if upload
directory is set as ~/upload
, that folder isn't created.
When default settings are kept, these directories are created and files too.