13.0.0 invoice features + configuration

config/config.js

@@ -2,7 +2,7 @@ require('dotenv').config();
 
 module.exports = {
 	Dev: "PROD.",                     
-	Version: "12.8.4", // (major).(feature).(revision/bug/refactoring)
+	Version: "13.0.0", // (major).(feature).(revision/bug/refactoring)
   Admins: ["362791661274660874", "329371697570381824"], // Admins of the bot
 	DefaultPrefix: "?",
   ServerID: "955668596745461830",