Open State
Each Item id added to the Accordion value array will be open by default.
State Rune
const value = $state(['club']);<Accordion value={value}>...</Accordion>Harcoded
<Accordion value={['club']}>...</Accordion>Multiple Items
Use multiple to enable multiple items to be opened at once.
<Accordion multiple>...</Accordion>Custom Icons
<script lang="ts">  import Plus from 'lucide-svelte/icons/plus';  import Minus from 'lucide-svelte/icons/minus';  import Club from 'lucide-svelte/icons/club';</script>
<Accordion>    {#snippet iconOpen()}<Plus size={16} />{/snippet}    {#snippet iconClosed()}<Minus size={16} />{/snippet}    <!-- ... -->  <AccordionItem id="club">      {#snippet controlLead()}<Club size={24} />{/snippet}      <!-- ... -->  <AccordionItem></Accordion>