because the CSS was lazy-loaded the rules in arc-green did not win.
included the css file in the main bundle to fix. the black dots can not
be fixed via CSS because they are drawn in a `<canvas>` element
unfortunately.
- introduced window.config to help with js-based lazy-loading
- adjusted webpack chunk naming to avoid 'vendors~name.js' that webpack
defaults to for vendor chunks.
- added theme class to html and prefixed all selectors. this is
neccesary so that the theme styles win over the lazy-loaded ones.
Co-authored-by: zeripath <art27@cantab.net>