[Feat]: Add slideFocus event

[davidjerleke]

Which variants of Embla Carousel are relevant to this feature request?

• embla-carousel (Core)
• embla-carousel-react
• embla-carousel-vue
• embla-carousel-svelte
• embla-carousel-autoplay
• embla-carousel-auto-scroll
• embla-carousel-solid
• embla-carousel-auto-height
• embla-carousel-class-names
• embla-carousel-docs (Documentation)
• embla-carousel-docs (Generator)

Feature description

I want to be able to hook on to an event that is triggered when a slide receives focus. For example, when a focusable element like a button, link or input receives focus inside a slide.

Additional Context

• PR: [Feat]: Add slideFocus event #874.

Before submitting

• I've made research efforts and searched the documentation
• I've searched for existing issues
• I agree to follow this project's Contributing Guidelines for feature requests

[davidjerleke]

This feature is available from v8.1.0 and up.