More accessibility fixes

src/organisms/Carousel.svelte

@@ -174,6 +174,7 @@
                     on:click={openFullscreen}
                     role="tabpanel"
                     aria-label="Photo {index + 1} of {photos.length}"
+                    aria-hidden={index !== currentIndex}
                 >
                     <picture class="gallery__picture">
                         <source media="(min-width: 968px)" data-srcset={getThumbnail(image.private_hash, 1200)}>

src/organisms/Pagination.svelte

@@ -41,6 +41,7 @@
         on:click={displayMorePhotos}
         on:mouseenter={() => pageTranslate = pageTranslate - (100 / pagesTotal) * 0.666}
         on:mouseleave={() => pageTranslate = pageTranslate + (100 / pagesTotal) * 0.666}
+        rel="next"
     >
         <div class="pagination__info">page</div>
         <div class="pagination__numbers">