feat(discord-bot): suppress mention reply on success

apps/discord-bot/src/commands/ping.ts

@@ -1,5 +1,12 @@
 import type { Command } from "~/commands";
 
 export const pingCommand: Command = async (message, args) => {
-  await message.reply("pong");
+  await message.reply({
+    content: "🫵 Pong",
+    options: {
+      allowedMentions: {
+        repliedUser: false,
+      },
+    },
+  });
 };