re-enable production source maps

[maennchen]

• introduced in Add SourceMaps to minified JS #1385
• removed again in Rewrote the asset build pipeline #1474
• mailing list https://groups.google.com/g/phoenix-core/c/Dk2AbXVnzeg
• phoenix counter-part Add SourceMaps to minified JS phoenix#4276

[maennchen]

Amended compiled JS & Source Maps as discussed with @bcardarella

[bcardarella]

@chrismccord 👍 from me on this, should be OK to merge

[chrismccord]

@maennchen thank you! Can you back out the precompiled changes and I will rebuild after merging? We prefer to avoid precompiled builds in PRs for conflicts and security reasons. Thanks!

[bcardarella]

@chrismccord the pre-compile is necessary to reference the sourcemap file, otherwise the js console won't know how to associate the two

[chrismccord]

to be clear, I will build the the source/maps after I merge and everything else is perfect, we just prefer to avoid merging minified/compiled js since it can be an easy security backdoor as it is not human readable.

[bcardarella]

@chrismccord ah ok, makes sense 👍

[maennchen]

@chrismccord / @bcardarella The dist files are now removed.

[maennchen]

@chrismccord / @bcardarella Is there any change needed on this PR?

[bcardarella]

Should be OK to merge

[chrismccord]

❤️❤️❤️🐥🔥