Add emblaApi as a first parameter to event listeners

[davidjerleke]

Feature request is related to

• embla-carousel (core package)

Describe the solution you'd like

• Add emblaApi as a first parameter to event callbacks. This will make it easier to define event handler functions/callbacks without the need of having the emblaApi variable in the same scope.

Feature specification

Before this feature:

const onSelect = (eventName: EmblaEventType) => {
  console.log(`Embla just triggered ${eventName}!`)
}

After this feature:

const onSelect = (emblaApi: EmblaCarouselType, eventName: EmblaEventType) => {
  console.log(`Embla just triggered ${eventName}!`)
}