Add linting

[skttl]

Would be nice if the plugin could lint like the official vs code extension.

Eg. if I have <div class="lg:h-[634px] mt-26 mb-12 lg:mb-24 relative absolute"> I want it to put green squigglies below relative and absolute.

[theron-wang]

Sorry for the late response. I just added linting, so you should be able to use it once you update the extension.

Thanks for the suggestion!

[skttl]

This is great - thanks!