Display autotype value with "Choose field to type" list

I think it might be useful to display "autotype ($autotype_value)" in case it is not the default.
This conflicts with the code changes in #159, so I am not doing it already.

This would display "autotype (pass)" if you have configured `autotype: pass` for the entry then.
It is meant to help with what would be done, without having to peek into the entry before.