use timezone directly from /usr/share/zoneinfo rather than /usr/shar/…

…zoneinfo/posix

Firefox was not picking up correct timezone and Chromium gave error about incorrect timezone.
Looks like the browsers read timezone by looking at the symlink from /etc/localtime to
/usr/share/zoneinfo/CONTINENT/REGION.

Linking to /usr/share/zoneinfo/posix/CONTINENT/REGION seems to be messing this logic up,
so link to the direct location.

Helpful links:
https://bugs.chromium.org/p/chromium/issues/detail?id=811403
https://en.wikipedia.org/wiki/List_of_tz_database_time_zones

bin/timeset.sh

@@ -106,11 +106,11 @@ else
 		echo -e "$(date) ($(date +%z))" "$BOLD" "<-Local time" "$CLR" "\n$(date -u) (UTC)" "$BOLD" "  <-UTC" "$CLR"
 	}
 	list_timezones() {
-		find -L /usr/share/zoneinfo/posix -mindepth 2 -type f -printf "%P\n" | sort | less
+		find -L /usr/share/zoneinfo -mindepth 2 ! -path '*/posix/*' ! -path '*/right/*' -type f -printf "%P\n" | sort | less
 	}
 	set_timezone() {
-		if [ -f "/usr/share/zoneinfo/posix/$1" ]; then
-			ln -sf "/usr/share/zoneinfo/posix/$1" /etc/localtime && echo "$(gettext 'Timezone set to') $1"
+		if [ -f "/usr/share/zoneinfo/$1" ]; then
+			ln -sf "/usr/share/zoneinfo/$1" /etc/localtime && echo "$(gettext 'Timezone set to') $1"
 		else
 			msg 'Wrong timezone entered.'
 		fi