Aspect ratio wrapper

[aluarius]

Little but useful feature.

Refs: https://vuetifyjs.com/en/api/v-responsive/, https://v1.quasar.dev/vue-components/responsive

Also suitable for VaImage.

Mb option for VaContent?
Mb other responsive features for VaContent (https://vuetifyjs.com/en/api/v-responsive/#props)?

[asvae]

Let's do a bit of research on this.

It seems we need this functionality for at least 3 components: card, image, carousel. So it might make sense to extract it into a component.