Unminified source JS files and source maps are not distributed with builds

[westonruter]

I just realized that when doing a production build of a plugin, the JavaScript is getting minified (which is good) but there is no unminified version which is also being distributed. When SCRIPT_DEBUG is enabled, the unminified dev version of scripts should be used instead. Additionally, when using the minified version it would be great if a source map could connect it to the unminified version.

As it stands, the only JS distributed with Optimization Detective is the minified versions:

• https://plugins.trac.wordpress.org/browser/optimization-detective/tags/0.5.0/detect.js
• https://plugins.trac.wordpress.org/browser/optimization-detective/tags/0.5.0/build/web-vitals.js

[adamsilverstein]

This one would be a good ticket to work on at WCUS contributor day.