updateOnMove should also update .is-hidden on move to animate slides out faster.

[NoHara42]

Currently only .is-active is updated on move. This makes it difficult to use css to select slides on the edge of the viewport for fade in/out animations.

Ideally I would like to select all slides that are not hidden (do not have .is-hidden) and make them opaque, and animate slides out when .is-hidden is present.

However, using .is-hidden currently results in the slide updating after the move. Meaning the animation is slow and clunky-looking.

Currently, in order to create the faster animation.
I have to do a disgusting workaround by using the adjacent sibling operator by selecting the .is-active class. (As it is applied to the element ON move, versus after the move event.)
Which results in this extremely smelly code smell that hides the outermost slide at specific breakpoints...

        .slide__cardssmall--animation {
            @apply opacity-100 transition-all;
            &.is-prev {
                @apply opacity-0;
            }
            &.is-active {
                @screen md {
                    & + * + * + *  {
                        @apply opacity-0;
                    }
                }
                @media only screen and (min-width: 1300px) {
                    & + * + * + *  {
                        @apply opacity-100;
                    }
                    & + * + * + * + *  {
                        @apply opacity-0;
                    }
                }
            }
        }

I hope you agree that this code smell is smelly indeed, and perhaps point me towards a different solution, or perhaps implement my feature request? 😇

Thanks for the awesome library. Good job!