Description

Updates our contributing guide and issue templates per our discussions about streamlining and adding firmer direction about how to provide feedback.

Changelog / Code Overview

Updated contributing doc with better guidelines about opening issues, and firm language about expectations.
Linked to contributing guides in the issue templates, made important questions required
Fixed some incorrect/missing details about using the repo locally
Added precommit and CI validation to prevent npm usage by rejecting package-lock.json file
[x] Close all discussion topics except Announcements (now directing people to issues)
[x] Create labels for missing-details or off-topic issues

CHNL-5893 CHNL-4970