Acumbamail + MailerLite Integration

Keep Acumbamail and MailerLite aligned: when communication events happen in one, update the other automatically.

Example: when Acumbamail's "Watch Emails" fires, WEXTL can "Add Cart Item" in MailerLite. Acumbamail has 2 triggers (including Watch Emails and Watch List Subscriber); MailerLite has 91 actions (including Add Cart Item, Assign Product to Category, and Assign Subscriber to Group).