Fix stock modal

Added a product-page-loaded tracking event to the product detail page.

How it benefits the Merchant

Gives merchants better analytics visibility into product page views, supporting more accurate marketing and performance reporting.

Potential FAQs

Q: Do I need to configure my analytics tools to use this event?

A: Check with your account manager for store-specific configuration details.

Q: Does this change anything customers see on the product page?

A: No — this is a tracking event addition, not a visible change.