New metrics for the Purchases event on the website - TikTok Ads#1258

I request to add new fields related to purchases on the site for the TikTok Ads conector

Purchases (website)

Cost per purchase (website)

Payment completion ROAS (website)

Purchase value (website)

https://windsor.ai/data-field/tiktok/#complete_payment
https://windsor.ai/data-field/tiktok/#complete_payment_roas
https://windsor.ai/data-field/tiktok/#offline_shopping_events_value
https://windsor.ai/data-field/tiktok/#total_complete_payment_rate