🌀(component): 优化carousel首次加载时不应存在动画效果，而是应立即显示默认的item

package/component/src/component/carousel/index.less

@@ -39,6 +39,7 @@
   transition-duration: 0.3s;
   -webkit-transition-duration: 0.3s;
   overflow: hidden;
+  visibility: hidden;
 }
 
 .layui-carousel-updown > * {

package/component/src/component/carouselItem/index.vue

@@ -45,15 +45,15 @@ const getStyle = computed<any>(() => {
     if (activeIndex === currentIndex) {
       if (animation === "updown") {
         return {
-          transform: "translateY(0)",
+          transform: "translateY(0)", visibility: 'inherit'
         };
       } else if (animation.includes("fade")) {
         return {
-          opacity: 1,
+          opacity: 1,visibility: 'inherit'
         };
       } else {
         return {
-          transform: "translateX(0)",
+          transform: "translateX(0)",visibility: 'inherit'
         };
       }
     }