Default setting for showing hidden files

Submitted by Kevin Cox

Assigned to Jannis Pohlmann

Link to original bug (#7650)

Description

Currently, Thunar restores the last setting for hidden files. I think it is more intuitive that the user can pick a default setting and have that be used in every new window.

I believe that most people usually want to or don't want to see hidden files. I don't think it goes in streaks.