Use forward refs instead of `containerRef` for references to the rendered chart

# Feature Requests

### Checklist

- [X] I've read through the [Docs](https://formidable.com/open-source/victory/docs) and [Guides](https://formidable.com/open-source/victory/guides) to make sure this functionality doesn't already exist

- [X] I've searched open issues to make sure I'm not opening a duplicate issue

### Description

#781 implemented a way to get the reference of charts using the `containerRef` prop on `` to export charts, but this only works with older react class components as the newer function components uses `useRef()` to get the reference of components. This implementation also reads ref by assigning the ref during rendering which is not recommended and does not get the entire chart. #1917 and #2673 have forward refs but not for containers or charts.

Edit: #781 uses `useLayoutEffect` as one of the ways to migrate this issue but this should not be required as the chart only needs to be rendered once for the full chart to appear.