local variable 'sorted_tosort' referenced before assignment

[pokorny-martin]

https://github.com/vincentcox/StaCoAn/blob/4abd2e3e7b5764b04f3b3500994428f78434200f/src/helpers/project.py#L82 There should be one tab less, so if any of you run into this issue just delete one tab on this line and it will be working a-ok.