Fix: dist error

[xiaofan2406]

change the env preset so that it does transpile to commonjs modules. Because src/dist-entry/index.js uses module.exorts instead of es6 modules.

Ideally, we can utilise babel export extension plugin to fix src/dist-entry/index.js, but for now this fix should work

And subsequently need to modify hot-reloader setup.

[codecov-io]

Codecov Report

Merging #672 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #672   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          54     54           
  Lines         767    767           
  Branches      156    156           
=====================================
  Hits          767    767

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[omgaz]

Looks like it fixes it locally after I use this branch and re-install my node dependencies. Will re-run and see if it resolves.