JSX transform incompatible with React 19

What is the current behavior?

JSX transform uses React.createElement, which is incompatible with React 19: https://react.dev/blog/2024/04/25/react-19-upgrade-guide#installing

This is somewhat premature, as React 19 isn't out of canary status yet, but component libraries should adapt prior to React 19 getting out of canary status.

What is the expected behavior?

Able to use with React 19