Optimise loading of content on order confirmation page

To reproduce:
- Go trough the subscription journey
- On checkout page click “Checkout” - while order is processing, the spinner on the “Checkout” button is shown
- When confirmation page is opened observe the order details component

Actual result: order confirmation page is opened but component with order details is still loading.

 

 

Expected result: order confirmation page is opened showing all the components/subscription details at once.