Project name cannot be inferred when loading PEP from csv

[donaldcampbelljr]

          > However, Looper goes on to later call `prj.name` and it fails with the exception: `Project name inference isn't supported on a project that lacks a config file.`

This would be a separate bug, then, because those are valid projects.

Originally posted by @nsheff in https://github.com/pepkit/looper/issues/456#issuecomment-1998076553