Is there any way for installing it via npm the current appium studio

[details=Summary]This text will be hidden[/details] Currently i am seeing in the documentation in which maven is mentioned is there any way that i can install the appium studio package via npm

Currently there is no npm installation.

Is there any plan to provide support for Javascript in appium studio in near future?

Yes. We are working on it and I expect it to be available in ~8 weeks.