Improve Haskell quasiquote highlighting
Improve Haskell quasiquote highlighting

Now only the inside of the quasiquote gets the string coloring applied.

casimir/kakoune,danr/kakoune,danr/kakoune,jkonecny12/kakoune,jkonecny12/kakoune,casimir/kakoune,mawww/kakoune,danr/kakoune,lenormf/kakoune,occivink/kakoune,occivink/kakoune,lenormf/kakoune,alexherbo2/kakoune,Somasis/kakoune,Somasis/kakoune,alexherbo2/kakoune,occivink/kakoune,jkonecny12/kakoune,lenormf/kakoune,danr/kakoune,alexherbo2/kakoune,jkonecny12/kakoune,Somasis/kakoune,alexherbo2/kakoune,occivink/kakoune,casimir/kakoune,mawww/kakoune,lenormf/kakoune,mawww/kakoune,Somasis/kakoune,casimir/kakoune,mawww/kakoune