feat(accordion): add "sm", "xl" size variants to Accordion and AccordionSkeleton

src/Accordion/Accordion.Skeleton.svelte

@@ -11,6 +11,12 @@
    */
   export let align = "end";
 
+  /**
+   * Specify the size of the accordion
+   * @type {"sm" | "xl"} [size]
+   */
+  export let size = undefined;
+
   /**
    * Set to `false` to close the first accordion item
    * @type {boolean} [open=true]
@@ -25,7 +31,9 @@
   class:bx--accordion="{true}"
   class:bx--skeleton="{true}"
   {...$$restProps}
-  class="bx--accordion--{align} {$$restProps.class}"
+  class="bx--accordion--{align}
+    {size && `bx--accordion--${size}`}
+    {$$restProps.class}"
   on:click
   on:mouseover
   on:mouseenter

src/Accordion/Accordion.svelte

@@ -7,7 +7,7 @@
 
   /**
    * Specify the size of the accordion
-   * @type {"sm" | "lg"} [size]
+   * @type {"sm" | "xl"} [size]
    */
   export let size = undefined;
 
@@ -24,6 +24,7 @@
   <AccordionSkeleton
     {...$$restProps}
     align="{align}"
+    size="{size}"
     on:click
     on:mouseover
     on:mouseenter