Custom CSS Themes

[gmemstr]

By default tclip uses https://github.com/Xe/xess for CSS, which in itself offers a decent way of creating custom colour schemes. The files are embedded into the binary, which leaves no room to modify the CSS after build time - maybe we could introduce a configuration option to pass through a custom CSS file that is appended to the existing file during runtime.

[Xe]

Obsoleted by the move to Tailwind. I will revisit this in the future.

The use of Xess was a middle step in the development process that has since been removed.