fix: react dependency

[Zamiell]

Change Summary

Since React 19.1.0 came out, this plugin gives warnings whenever it is installed. This PR attempts to fix this bug.

PR Checklist

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[tharropoulos]

@Zamiell Have you tested it on both a React 18 and a React 19 app?

[Zamiell]

well we know it works fine on react 18 because it has been working fine for years.
as for react 19, yes, i have tested it on version 19.1.0 and it seems to work fine.
the UI still works as before and there are no errors in the javascript console.
all this PR will do is clean up the superfluous warnings on npm install.
as long as react follows semver (which they do) no minor version should break anything.

[tharropoulos]