JS for Stripe is loaded always, even if not activated/used

In the network ressources ive seen that javascript from stripe is loaded even if we dont use it. For privacy and perfomance reasons it would be cool to stop loading them if not required.

reviewed with Fab-manager 6.4.9

<img width="1419" height="462" alt="Image" src="https://github.com/user-attachments/assets/a7c670bf-db6f-42c9-b454-f096c7fc474c" />