React@18 support

[bloodyowl]

Context

React 18 is in RC and will soon be released:

reactwg/react-18#112

Updates

• Deprecate ReactDOM.render
• ReactDOM.Experimental.createRoot → ReactDOM.createRoot
• ReactDOM.Experimental.createBlockingRoot
• ReactDOM.Experimental.root → ReactDOM.Root.t
• ReactDOM.Experimental.render → ReactDOM.Root.render
• ReactDOM.Root.unmount
• React.useDeferredValue
• React.useInsertionEffect{,0,1,2,3,4,5,6,7}
• React.useSyncExternalStore
• React.useId

[tom-sherman]

I believe this list is missing useTransition /startTransition?

[cometkim]

I have binding to useMutableSource (former version of useSyncExternalStore)

https://github.com/reason-seoul/snowpack-rescript-react/blob/07a59a6/src/bindings/ReactExperimental.res#L4-L26

guess it might help