fix(payment) INT-6328 Bluesnap open a new tab insted of using iframe to complete order

[BC-luna]

What?INT-6328

Added a LoadingOverlay inside the modal

Why?

Related to PR 1578 The loading of the bluesnap checkout inside the modal may take some time.

Testing / Proof

Before

After

Ping @bigcommerce/apex-integrations @bigcommerce/payments

[JuanTorres077]

:green_heart: QA Tested:

Working as expected, the scenarios below were tested to ensure the coverage is complete.

Scenarios:

Credit Card with 3Ds

APM: PaySafeCard

      Wire Transfer

      Bank Transfer

      Electronic Check Presentment

      MoneyBookers 

      Added all the evidence in the below link… 

Evidence