browser: place the cursor properly on the selected file when -g is used

Simply redraw the browser screen upon every keystroke when --showcursor
is in effect, to be certain that the cursor will be placed again at the
correct spot.

This fixes https://savannah.gnu.org/bugs/?52078
and fixes https://savannah.gnu.org/bugs/?52079.
Reported-by: David Lawrence Ramsey <pooka109@gmail.com>
1 file changed