Support react 19

[kabo]

We're getting

TypeError: Cannot read properties of undefined (reading 'ReactCurrentOwner')

Using next 15 with react 19.

Probably related vercel/next.js#71836

I did try to manually override the @react-three/fiber version to 9.0.0-rc.10, but getting the same error still.

I'm not expecting there's much this lib can do but wait, mostly putting it here for tracking purposes, and so others getting this error can find a ticket on it.