* Adds a bit of contrast to the comments in the code editor
* Changes the ansi-color-light-black to the new color of the comments
* Color hex in lowercase
* Reverts to the old light-black
* Update webpack.config.js
Allows for xml syntax highlighting in markdown cells
* Extend theme to cover XML and JSON specific tokens
* Refactor theme colors into a single palette
Co-authored-by: Jonatan Kłosko <jonatanklosko@gmail.com>