Sync more details to Klavyio

Metrics (data saved at profile level): user_registration_date user_registration_method user_last_login company_id and company_name (just in case we want to use the company name in the emails) company_number_published_forms company_plan_name company_plan_paid (true/false) company_ltv Events: user_sign_up ✅ company_started_draft company_published_form company_checkout_started company_checkout_failed company_checkout_succeeded