i3: Fix program autostart script

Fixes timer calculation in autostart script.

Makes autostart script slightly more resilient, checking for timeout
time limit *or greater*.

i3/.config/i3/scripts/i3-applications-autostart

@@ -8,11 +8,11 @@ wait_for_program() {
     if xdotool search --onlyvisible --pid $! 2>/dev/null; then
       break
     else
-      if [ $n -eq 200 ]; then
-        notify-send -u critical "Error during start: last program $! did not started fast enough"
+      if [ $n -gt 200 ]; then
+        notify-send -u critical "Error during start: last program $! did not start fast enough"
         break
       else
-        n=$($n + 1)
+        n=$((n + 1))
         sleep 0.1
       fi
     fi