sort help alphabetically

src/commands/help.js

@@ -14,6 +14,7 @@ export default class HelpCommand extends Command {
   run(username, args) {
     const msg = this.#commands.commands
       .map(cmd => cmd.name)
+      .sort((a, b) => a.localeCompare(b))
       .join(", ")
 
     this.#chat.chat(msg)