Copy over a few more playground examples

src/routes/disclosure/disclosure.svelte

@@ -0,0 +1,27 @@
+<script>
+  import {
+    Disclosure,
+    DisclosureButton,
+    DisclosurePanel,
+    Transition,
+  } from "$lib";
+</script>
+
+<div class="flex justify-center w-screen h-full p-12 bg-gray-50">
+  <div class="w-full max-w-xs mx-auto">
+    <Disclosure>
+      <DisclosureButton>Trigger</DisclosureButton>
+
+      <Transition
+        enter="transition duration-1000 ease-out"
+        enterFrom="transform scale-95 opacity-0"
+        enterTo="transform scale-100 opacity-100"
+        leave="transition duration-1000 ease-out"
+        leaveFrom="transform scale-100 opacity-100"
+        leaveTo="transform scale-95 opacity-0"
+      >
+        <DisclosurePanel class="p-4 bg-white mt-4">Content</DisclosurePanel>
+      </Transition>
+    </Disclosure>
+  </div>
+</div>