Use optionalInputFields instead of inputFieldWhiteList

[koddsson]

Hello 👋 !

This PR upgrades relay to version 2 and fixes the issue described in #73. I'm not sure how you'd prefer the branching here so this could go into master and be published under a RC/dev tag on npm if you'd like or be tracked in a 2.0.0 branch.

I also had to update immutable and jest to get the tests passing locally. I additionally took out the resolutions since relay doesn't seem to have been published there in some time.

Let me know what you think 😺

Fixes #73

[kastermester]

Nice work! :)

I'm also not sure exactly how we should approach the upcoming 2.0 release. I am though, in general, in favour of keeping things as simple as possible. One solution I could see would be to leave this PR open until Relay 2.0 is released, then update the PR with the appropriate version numbers and merge it + release on NPM. Not sure what others think though.

@alloy Any ideas?

[alloy]

Awesome!

These API changes were already introduced in Relay 1.7 iirc, so imo the package should have a peer dependency on >= 1.7.0.

[alloy]

Ace, thanks 👍

I'll do an update of the example app and if that all pans out do a release.