Closes: #7757

Description

Currently we do not show the UIPrintInteractionController when requested after collecting a payment, because we dismiss the underlying order flow WooNavigationController when showing it. As the system tries to present from there, we get this error:

[Presentation] Attempt to present <UIPrintPanelNavigationController: 0x10c244c00> on <WooCommerce.WooNavigationController: 0x111808e00> (from <WooCommerce.WooNavigationController: 0x111808e00>) whose view is not in the window hierarchy.

To solve it I make the receipt printing presentation awaitable, so we can close the order flow WooNavigationController only when the printing flow is finished, whatever its end result -success, error, cancel, etc.

Testing instructions

1. Go to Menu.
2. Go to Payments.
3. Tap on Collect Payment.
4. Follow the flow and collect a payment with a card.
5. When the payment is collected successfully, tap on Print receipt.
6. The receipt printing controller should be presented -before it was not-.
7. Try different printing actions -email, save to notes, cancel, etc.-.
8. When done, it should dismiss the receipt printing flow, and then the order creation controller. (See attached video).

Screenshots

• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.