🪟 🔧 Convert Markdown.styles.scss to module

[timroes]

What

Converts the Markdown.styles.scss file into a SCSS module.

This uses now module generated class names for the markdown component itself as well as the admonition plugin.

Note: This was originally not made a module, because we wanted to have actual untouched class names in the output. This can be achieved in a SCSS module, by wrapping the class names in :global, i.e.:

.markdown :global(.admonition) {
  // creates a scrambled name for .markdown, but keep .admonition untouched
}

cc @edmundito

[edmundito]

I didn't think of approaching it this way because before I fixed some issues with the code tag there were other class names being used. This makes sense now!

I did not test this locally.