weird configutation files in resources folder

[shalva97]

It took me a while to figure out how fun Application.module() was being called. Turrns out it is written in application.conf.

What is the reason it was added? problem is that it has barely working automcomplete, ctrl+q doesnot work, no syntax check... What does it exactly solve, lets say it was a kotlin file with DSL code, what drawback would it have?