Unchangeable prefix

This is a great library indeed, however to set the prefix its not exactly good, I managed to change the prefix through the module source code and it works, for anyone seeing this, to change the prefix the way i did it was to change

this.prefix = config.prefix || ['!'];

(Specifically the ['!'] part)
Just make the ! part to your new prefix, then save

⚠️ This still does not mean you can have spaces in your prefix

You have to go on node_modules and then on @yaas, you go to djs-command-handler and edit index.js