Remove metadata (i.e. formID) from OrderItem !155
I feel that adding a connection of OrderItem to Forms is getting a bit too big. Ideally, the payments module should be as generic as possible, and stay very far from our business logic (i.e., teams). We are adding the form attribute to all orderitems just because there is one product (TeamJamboreeRegistration) that required a small metadata. Thinking about it now, I would suggest us to move the upsert action to a different endpoint, so frontend can call it (POST and GET) whenever needed, and all the backend code remains "clean" for future products and years.