Responsive charts with bootstrap (or probably any other layout system)

### Documentation Is:

- [ ] Missing or needed?
- [ ] Confusing
- [X] Not sure?

### Please Explain in Detail...

The docs at https://www.chartjs.org/docs/latest/configuration/responsive.html suggest a way of responsive sizing based on the viewport size, which often isn't appropriate.

### Your Proposal for Changes

Using the `aspect-ratio` property it's possible to make a chart fit nicely within the parent container's width instead of the window size. `overflow: hidden` is also needed otherwise the height won't change and trigger a redraw.

```html

### Example

_No response_