Update to React 18

[katherinejensen00]

Update dependency from React 17 to React 18

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[klappy]

Thanks for the PR @katherinejensen00! Did you have trouble using this in your React 18 app? Originally I had it set to 18 but downgraded for cross-compatibility with some of our existing React 17 apps. This should still work in your React 18 environment. I'll check with others to see if they see any issues with upgrading.

@samueljd, @larsgson, @abelpz, and @joelthe1 Do you know what version of React that your implementations are using? Do you see any issues if we upgraded the version of React to 18? Anybody available to help guide the PR review for the monorepo dependency update?

[katherinejensen00]

Hi @klappy, yes I did run into an error trying to use Xelah in a project using React 18. I am newer to React so it is possible there is an easier solution than updating Xelah. Here is the error I am seeing: