Skim does not search ~/.terminfo if TERMINFO_DIRS is set

[lilyball]

NOT A CONTRIBUTION

If the TERMINFO_DIRS env var is set, Skim does not search ~/.terminfo for the terminfo file even though ncurses does. This leads to extremely broken output.

This is most likely a bug in the term crate as I assume Skim is relying on that crate's built-in search, which gets this wrong. I filed an issue there already as Stebalien/term#121 but I'm filing this one here to track the bug as Skim will have to update its usage of that crate once it's fixed.