update runtime dependencies, peer dependencies

[lfender6445]

React SDK

What did you accomplish?

• according to https://github.com/splitio/react-client/blob/1a58f06b91c63cac2f4032fa3c338573fb30a615/src/utils.ts#L2 '@splitsoftware/splitio' is a runtime dependency
• better support build systems that run npm prune --production

How do we test the changes introduced in this PR?

Unfortunately I had trouble getting the test suite to pass. I fixed one broken path, but there are 3 more failures, all unrelated I think. Given there have been no logical changes, happy path testing should be fine.

Extra Notes

• Added react-dom to peer deps
• Some types were also incorrectly labeled as runtime dependencies, they have been moved as well
• It appears I am generating a different lockfile format than the author. If there are npm version constraints they should be expressed in the package.json but I did not see any

[agustinona]

Hi @lfender6445 , thanks for the contribution!

Our engineering team will review this and take it into consideration for a future release.

[EmilianoSanchez]

Hi @lfender6445 ,

We have merged your changes, but will do some refactors before releasing a new version of the SDK.

Thank you