Using [jsspencer/pomo](https://github.com/jsspencer/pomo) as the timer
of choice. It is simple, it works well, and it uses a very elegant way
of tracking the time.
I can think about implementing my own version later, but this will
handily suffice for now.
Polybar script will now limit the pomo timer to a single 'running'
instance containing the notification function, by putting its running
instance PID in a lockfile and killing it before restarting or changing
the timer.
Added running and paused tomato icons; as well as break coffee icon.
Removed display of seconds, unless the last minute of a timer is
running.
Makes polybar use Xresources color values for its colors. Resets rofi
values to their default after being overwritten by the base16 themes.
Makes qutebrowser include the colorscheme in its configuration file.
Ignore dynamically generated colorschemes in .gitignore file.
