Description

A new programmatic interface that can be used to open dialogue modals for various purposes, with features similar to those of https://buefy.org/documentation/dialog.

This may need #633 to be completed first to show a card modal.

A11y: https://www.w3.org/WAI/ARIA/apg/patterns/alertdialog/

Why Oruga need this feature

Enhance the programmatic interface with an easy-to-use solution for common usecases.