[Feature Request] Nord theme.

[mariusberget92]

New feature motivation

A new theme with a specific color palette (light and dark mode where there's a dark version for dark mode and light version for light mode). Would fit in rather nice with websites already using this color palette for the website.

New feature description

The dark theme would have to be modified with colors that are in the Nord color palette.
[https://www.nordtheme.com/docs/colors-and-palettes](https://www.nordtheme.com/docs/colors-and-palettes