Raise helpful error when trying to migrate project title of length 1

[k4y4k]

I have a(n archived) project called F in toggl, but when I try to migrate it, it always fails.

After a spot of investigation, I saw an error on Clockify's web interface that a project name must be 2-20 characters. This would have been nice to have known about.

I suppose I should have been suspicious when toggl2clockify repeatedly indicated F was new in the project sync step, but, as no errors were thrown, I thought nothing of it until I was 2000+ task entries in.