Sub components of components can be ordered via options

[Ricagraca]

Describe the problem to be solved
Currently, the configuration of the redoc standalone component is very limited for developers regarding the position/order of the elements. For example, it would be nice to have an option to set the rendering of the Endpoint after the Description in the middle panel. For this reason, it would be nice to have a more flexible configuration for where to render these sub components.

Describe the solution you'd like
A possible solution would be to have the order set in the options of the redoc standalone component (ascending would be enough). For example:

{
        position: {
            rightPanel: {
                order: ['description', 'endpoint']
            },
        }
}

Describe alternatives you've considered
An alternative would be to have a way to easily modify the component implementation. Making it public and not as a constant. This would make it easier for developers to customize the components (not sure if this is an option without forking the repo or re-implementing from scratch these components and setting them).

Additional context
As a developer, I want to choose where each sub-component is rendered in an easy way (e.g., through the options field of the redoc standalone component).

[adamaltman]

Nice idea. Thank you. 🎉