utility.decoration: fix double embed for decor only

src/modules/utility.js

@@ -744,7 +744,9 @@ decoration.callback = async function (msg, line, [user]) {
   decorEmbed.image = {url: decor};
 
   return {
-    embeds: [baseEmbed, decor && decorEmbed].filter((x) => x != null),
+    embeds: [normalUrl && baseEmbed, decor && decorEmbed].filter(
+      (x) => x != null
+    ),
   };
 };
 hf.registerCommand(decoration);