Feature summary (what you would like to be able to do and where):
I would like Kotlin, maybe start with either JS or Common or both, to be supported as a language on Wikifucntions.

Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):
Kotlin is a very popular language. Even without Android, many websites use it for backend development and it can transpile to JavaScript. It also absorbs Python usecases.

Benefits (why should this be implemented?):
Another language and a lot more functions that could be implemented