Support css classes with escaped characters

[joma74]

Tailwind's w-1/4 does currently not get intellisensed to code completion. Code completion stops after the forward slash as in w-1/

As opposed to https://tailwindcss.com/docs/width/, this is really really 😀 defined in CSS as

...
.w-1\/4 {
  width: 25%;
}
...

[joma74]

Additionally, the first of those seem to break intellisense on any further classes in the same class attribute. In the following example, text-center is not recognized; while it is if w-1/2 removed.

<div class="w-1/2 text-center">
      some content
</div>

[onetrev]

Note, this issue is already listed here: #113

[joma74]

Ah, Same case, so upvoted #113 and closing