fix: only the key is lowercase

Author: mrepol742

src/components/events/message.ts

@@ -97,7 +97,7 @@ export default async function (msg: Message, type: string): Promise<void> {
   const [command, ...rest] = normalizedBody.split(" ");
   const key = command.toLocaleLowerCase("en");
 
-  msg.body = [command, ...rest].join(" ").toLocaleLowerCase("en");
+  msg.body = [key, ...rest].join(" ");
   const handler = commands[key];
 
   // stop here