Event tracking, csv catalog and cron for Facebook Pixel Module 3.6.9

External ID is now sent with unique identifier based on customer ID hashed
Fix: fbp may not sent at first load
Multiple pixel initialization issue
FBC is now sent based on fbclid or cookie foud

Solved a cookie issue when SameSite=None security level is set

Recoded the Purchase event, because weak for some payment methods

• Send "contents" object with quantity and item_price in add to cart event
• Fixed an issue in PS 1.6.x (ViewContent event)

• Iubenda integration added
• Fixed some js issues, after webpack updating