[IntelliSense] Preview of grouped variants

[valerii15298]

Feature Request

Preview class names with grouped variants

There was discussion of adding this feature to the tailwind itself:
#8337

This is proposal is to add preview of grouped variants to the extension.
So that for hover:bg-red-500 hover:text-white extension would show some button(or keyboard shortcut or something) which triggers view of tailwind classnames which have variants grouped, so it will look like hover:(bg-red-500 text-white) just for the reading.

One of the soloution I would suggest is: user selects a text(list class names) and then trigger extension action which would show the claas names grouped by variants(just for reading without editing).

The upside is really just to read the classnames. It really lowers cognitive load when you can read it based on different states.

The next step could be to implement editing the preview where classes grouped by variants, so when user edits it - the extension would give a valid ungrouped tailwind result. If user selected a text, edited it, then resulting output of tailwind classes would substitute the original selected text.