[Suggestion] Support for Node.js

[koldoon]

Node.js has quite popular package named 'dotenv'. It uses the same '.env' file format to parse. Then in code you can reference environment by process.env.VARIABLE_NAME.

This would be supercool if this plugin would support Node.js too as it supports Python, Go and Ruby.

[adelf]

Actually, I support Javascript. At least for process.env.[completion]. But starting from 2020.1 version Javascript plugin has own, more smart, completion for .env values.