Fix command parsing

src/main.rs

@@ -162,14 +162,13 @@ async fn parse_message(event: SyncMessageEvent<MessageEventContent>, room: Joine
     };
 
     if let Some(message) = message.strip_prefix("!") {
-        if let Some((command, args)) = message.split_once(" ") {
+        let (command, args) = message.split_once(" ").unwrap_or((message, ""));
         match command {
             "source" => source(room).await?,
             "uwu" => uwuify(room, args).await?,
             _ => unsupported_command(event, room, command).await?,
         }
     }
-    }
 
     Ok(())
 }