Auto merge of #37469 - meh:fix-term, r=alexcrichton

Auto merge of #37469 - meh:fix-term, r=alexcrichton

Fix terminfo database search path

This is more consistent with what every other program does, I happened to have `TERMINFO` set as `/usr/share/terminfo` but had the actual database in `~/.terminfo`, regardless of that every other terminfo/ncurses based software picked up the one in the home correctly.

This just puts the path in `TERMINFO` at the top of the search paths, and moves the home checking to the default search paths section.