Source Maps get messed up on bundling

[amcdnl]

Source maps are pointing to the wrong source on a bundle build.

[marjan-georgiev]

The bundler is replacing some of the compiled files in the /dist directory with the new bundled modules, so the sourcemaps point to the same file. Need to figure out a way to keep the compiled files, or have the sourcemaps map to the original ES6 sources in the /src directory.