Integrate Preorder offer on Upsell cart app's drawer

Integrate Preorder offer on Upsell cart app's drawer. Merchants reported that pre-orders work when adding products from the product page but not from the UpCart upsell drawer. UpCart only fetches selling plan details when the product is on its page. Their team shared their API] page link for custom development of this feature with the merchant - https://aftersell.notion.site/UpCart-Public-API-7a0f6d75cb044871bdb6da5d99cfc755)
Link: https://app.crisp.chat/website/2911cad6-d4a1-461c-9004-f4e58a19b68a/inbox/session_b8e515aa-91cb-4528-8d4f-82cd3edb7646