[APP] Klaviyo - Oauth Version with updated functionality

**Name of app / service**
Klaviyo

**Link to developer documentation**
* [API Docs](https://developers.klaviyo.com/en/reference/api_overview)
* [Oauth](https://developers.klaviyo.com/en/docs/set_up_oauth)
* [Collect Email and SMS](https://developers.klaviyo.com/en/docs/collect_email_and_sms_consent_via_api)

**Is lack of support preventing you from moving forward, or do you have a workaround?**
Users are currently able to set up auth with an API Key, would prefer an Oauth version

**Are there specific actions or triggers, you'd like to see for this app? Please let us know here or use the Action and Trigger issue templates to open requests for each!**
* update email / text message consent
* update profile properties
* create events to track profile behaviors