feat: add support for new accordions

src/lib/components/Accordion/Root.svelte

@@ -0,0 +1,9 @@
+<!-- AccordionRoot.svelte -->
+<script>
+    import { getContext, setContext } from 'svelte';
+    import { writable } from 'svelte/store';
+</script>
+
+<ul class="collapsible u-width-full-line" style="--p-toggle-border-color: var(--aw-color-border);">
+    <slot />
+</ul>