Added theme to rofi making use of dropdown possibility. Will create a
window spanning whole page (or less, depending on how many lines dmenu
command passes on), and dynamically resizing to number of items.
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.
