Is there a way to configure a Heatmap chart to use square cells? As far as I can tell, the cell aspect ratio is a side effect of the size of the component. Since the component can contain more than just the cells themselves (axis labels, title, padding etc.), it seems difficult to set the size of the component so that cells are always a square shape at various screen sizes. I have a workaround that attempts to do this by using the CSS aspect-ratio property on the Chart component, but it's a hacky way of doing this and not perfect.