[ETP-812] Fixed showing Checkout not available and credit card fields at the same time for PayPal in TicketsCommerce.

[rafsuntaskin]

🎫 Ticket

ETP-812

🗒️ Description

🎥 Artifacts

✔️ Checklist

• [ ] I've included a changelog entry in the readme.txt file.
• [ ] My code is tested.
• [ ] My code has proper inline documentation.