fix: bug fix in playground where audience string was set instead of array.

Author: asaf

playground/index.html

@@ -711,7 +711,7 @@ <h3 class="text-lg leading-6 font-medium text-gray-500">Actions</h3>
         },
         computed: {
           audience: function () {
-            return [this.audienceInput]
+            return this.audienceInput ? [this.audienceInput] : undefined
           },
         },
         created: async function () {