fix(command): 🐛 fix bot address regex returning undefined

Waits till spawn to make sure `bot.username` is definitely initialized

lib/plugins/command.js

@@ -30,11 +30,10 @@ const events = {
     whisper: function command_whisper(username, message) {
         if ([bot.username, "me"].includes(username)) return
         if (/^gossip/.test(message)) return
-        // if (/^!/.test(message) && username === cfg.admin){
         if (username === cfg.admin) {
             message = message.replace("\\", "@")
             console.info("whispered command", message)
-            if (/^!/.test(message)) {
+            if (message.startsWith(cfg.botAddressPrefix)) {
                 command(username, message)
             } else {
                 bot.chat(message)