Use colors from WordPress theme

[psrpinto]

Chatrix currently uses the default Hydrogen theme, which doesn't necessarily align with the design of the WordPress site, specifically in what concerns colors.

It would be useful to automatically (or semi-automatically, e.g. through the block inspector) be able to use the WordPress theme's colours as Chatrix's colors.

There's documentation on customizing Hydrogen's themes at https://github.com/vector-im/hydrogen-web/blob/master/doc/architecture/THEMING.md.