chore(playground): compodium setup

playground/compodium/examples/UCheckbox/UCheckboxExampleDescription.vue

@@ -0,0 +1,14 @@
+<script setup lang="ts">
+extendCompodiumMeta({
+  combo: ['size', 'color'],
+  defaultProps: {
+    label: 'Click me!',
+    description: 'This is a description',
+    modelValue: true
+  }
+})
+</script>
+
+<template>
+  <UCheckbox />
+</template>