Support string interpolation in syntax highlighting

[ljos]

Jq has string interpolation like "The input was \(.), which is one less than \(.+1)". It would be nice if we showed the interpolated part as normal jq code.

[ljos]

@nverno I think you deleted your comment, but I am more than happy to for you to take my code or that you integrate your code into this repo. I added you as a collaborator if you are interested.

[nverno]

Nice, ty! Yea, I deleted the previous comment because I wanted to think about how much effort it would be and not create unnecessary work. I'll keep you posted if I come up with any ideas about this.