chore(playground): compodium setup

playground/compodium/examples/UAlert/UAlertExampleVariants.vue

@@ -0,0 +1,13 @@
+<script setup lang="ts">
+extendCompodiumMeta({
+  combo: ['variant', 'color'],
+  defaultProps: {
+    title: 'Heads up!',
+    description: 'You can change the primary color in your app config.'
+  }
+})
+</script>
+
+<template>
+  <UAlert />
+</template>