Render children in StructureComponentInner to allow useComponent hook to be used in children

[cmdcolin]

Hi there

I didn't fully test this, but I was trying to use the StructureComponent (e.g. to draw a selection like only amino acids 0-90) but I also wanted to have a hook that had useComponent so I had

const ComponentChild = () => {
    const component = useComponent
    useEffect(() => { /* do stuff with component */ })
}

const OtherThing = () => {
    return <StructureComponent><ComponentChild/></StructureComponent>
}

I believe that the ComponentChild does not get rendered by this however, as console.logs in the function body are never called

This PR tries to address this

[cmdcolin]

Let me know if this makes sense. I am trying to add a storybook example but I can't get it to work currently...my code modifications to StructureComponentInner don't seem to get picked up

[gky360]

Thank you for creating a pull request!
I understand your use case. Your changes to the StructureComponentInner seem to be nice.

I'd like to merge this pull request for now. It would be great if you could add a storybook example for this use case when you have time.