Improved library store & Partly working episode playback

src/lib/components/IconButton.svelte

@@ -4,7 +4,7 @@
 	export let disabled = false;
 </script>
 
-<div
+<button
 	class={classNames('text-zinc-300 hover:text-zinc-50 p-1 flex items-center justify-center', {
 		'opacity-30 cursor-not-allowed pointer-events-none': disabled,
 		'cursor-pointer': !disabled
@@ -12,4 +12,4 @@
 	on:click|stopPropagation
 >
 	<slot />
-</div>
+</button>