feat(breadcrumb): supporot noTrailingSlash in skeleton

src/Breadcrumb/Breadcrumb.Skeleton.svelte

@@ -1,12 +1,27 @@
+<script>
+  /**
+   * Set to `true` to hide breadcrumb trailing slash
+   * @type {boolean} [noTrailingSlash=false]
+   */
+  export let noTrailingSlash = false;
+
+  /**
+   * Set number of breadcrumb items to render
+   * @type {number} [count=3]
+   */
+  export let count = 3;
+</script>
+
 <div
   class:bx--breadcrumb={true}
+  class:bx--breadcrumb--no-trailing-slash={noTrailingSlash}
   class:bx--skeleton={true}
   {...$$restProps}
   on:click
   on:mouseover
   on:mouseenter
   on:mouseleave>
-  {#each [0, 1, 2] as item, i (item)}
+  {#each Array.from({ length: count }, (_, i) => i) as item, i (item)}
     <div class:bx--breadcrumb-item={true}>
       <span class:bx--link={true}>&nbsp;</span>
     </div>