Script added for auto setup

[Rishab87]

I've added a script which automatically detects your OS and installs all dependencies and sets up the project easily, allowing new contributors to easily setup the project without much effort!

User just needs to run:

npm run setup

I've also fixed few minor issues in existing script, I've not tested the script for MacOS as I dont have access to apple devices, it would be great if someone can test this on MacOS too once and provide me feedback

This PR fixes #376

[imxade]

Docker Compose and editor configs should cover this.
Maintaining OS specific setup scripts seems beyond the project's scope and deviates from its core objectives.

[Rishab87]

With docker experience is laggy and many people were facing issues trying to set it up locally, its not beyond its scope and core objectives are being actively taken care of by me and others too, their's no point if many people can't set it up and contribute to it properly, it is mentioned in GSOC project description too that many people were facing issues while setting up this app

[imxade]

With docker experience is laggy and many people were facing issues trying to set it up locally

if that gets resolved, everything will be set with a single command. So, I suggest focusing on that instead of substituting something new.

[Rishab87]

I don't think docker is fixable that's why no one has worked on fixing it, it is a desktop app and docker runs on wsl, the support for GUI apps on wsl is not much as far as I know, you need to connect to a ip address for remote access to the window.

[Rishab87]

Squashed in #382