[Feature Request] Enable more flexible JSON input parsing

[krousey]

Is your feature request related to a problem? Please describe.

Sometimes I copy/paste JSON and leave a comma where I shouldn't.

Describe the solution you'd like

I'd like to not have to worry whether an element needs a trailing comma or not. Comments in JSON would be nice too.

Additional context

There are JSON parsing libraries that allow for this type of structure. https://github.com/tailscale/hujson has a Standardize function that just sanitizes raw bytes before you pass it to the standard json library.