Kotlin: string interpolation and character literal
Kotlin: string interpolation and character literal

Adding highlighting for string interpolation inside double-quoted strings and character literals inside single-quotes.

Avoiding string interpolation in the form of $var as this is considered bad practice.
jkonecny12/kakoune,jkonecny12/kakoune,lenormf/kakoune,alexherbo2/kakoune,casimir/kakoune,alexherbo2/kakoune,alexherbo2/kakoune,jkonecny12/kakoune,mawww/kakoune,mawww/kakoune,mawww/kakoune,lenormf/kakoune,casimir/kakoune,jkonecny12/kakoune,casimir/kakoune,casimir/kakoune,mawww/kakoune,lenormf/kakoune,lenormf/kakoune,alexherbo2/kakoune