[Redirect] don't import entire history module

[petermikitsh]

Hello, I was looking through my webpack bundle and found this optimization to reduce bundle size.

With these changes, my bundle goes from 797.3kb to 782.9kb, a savings of 14.4kb.

Before:

After:

[petermikitsh]

I've also updated the jest config so the unit test failures pass. These unit tests were failing prior to this PR -- they are not a regression introduced by this PR.

[timdorr]

Thanks!

[billyjanitsch]

@timdorr Are you sure about this one? The current import style was chosen intentionally in #5589.

This new PR prevents webpack from being pointed at the ESM build of history, and since react-router now contains some imports from 'history' (which will correctly point at the ESM build) and some from 'history/LocationUtils' (which will not), an ESM build will actually contain LocationUtils and its imports twice, once as ESM and once as CJS.

A better fix would be to add {sideEffects: false} in the history module's package.json, for which there is an open PR: remix-run/history#597. This would provide the best of both worlds.

Please consider reverting this before releasing a new version of react-router. 🙂