Allow closing of "Find" with shortcut
Currently you can open the "find" menu by pressing CTRL + F but you can not close it using the same shortcut.
Other GNOME applications such as Nautilus and gnome-software do have this behavior.
An issue with this however would be that people will start pressing CTRL + F twice to close/refocus. A solution to this issue would be to give it behavior similar to gedit by closing "Find" when no longer in focus, but do keep the search active until the search is manually emptied.