watches the button
With Reddit's /r/thebutton, I saw a need to watch the button. That's what this script does. This script will watch the counter, and if it reaches less than 20 seconds it'll switch focus to the button tab and bring up a popup. It'll also remove the check so it won't spam you. If the button goes below 20 seconds it won't catch it after it catches it once, so be sure to refresh the page after to have it still work.
