Preview (v0.9 Build 498)

Ensure that column options are forwarded to widgets and so on

```{r}
#| label: fig-widget
#| fig-cap: "An htmlwidget figure"
#| fig-column: margin
#| out-width: 100%
#| echo: fenced

plotly::plot_ly(data = cars,
                type = "scatter",
                mode = "markers",
                x = ~speed,
                y = ~dist)
```