[iOS] collectPaymentMethod throws unexpected error and gets stuck from proceeding

[asher5]

Describe the bug
V0.0.1-beta.18 is crashing when collecting payment on an M2 card reader with the error below

[I] <MMKV.cpp:1179::sync> MMKV::sync, SyncFlag = 1
stripe_terminal_react_native/Mappers.swift:647: Fatal error: Unexpectedly found nil while unwrapping an Optional value

To Reproduce
Steps to reproduce the behavior:

1. Call collectPaymentMethod with the following params {"paymentIntent":{"sdkUuid":"2CD3EF5A-231F-4DFC-8685-4E65F39EFAF8","status":"requiresPaymentMethod","created":"1715808917000","currency":"usd","captureMethod":"manual","paymentMethodId":null,"statementDescriptor":null,"statementDescriptorSuffix":"Asher S","paymentMethod":null,"amountTip":0,"id":"pi_3PGpTlBc6uwoDriN1iqTOhV0","metadata":{"transaction_uuid":"2f56eb0c-7f94-40ce-972f-4d061f4280da","chargeable_type":"Appointment","charge_guid":"2a116dfce6","chargeable_id":"10980610","client_id":"3633713","transaction_designation":"payment","organization":"Standard","user_email":"asher_test@glossgenius.com","transaction_payment_type":"payment_card_terminal","application_fee":"140","user_id":"55091"},"charges":[],"amount":5400,"amountDetails":{"tip":{"amount":null}},"offlineDetails":null},"updatePaymentIntent":true}
2. Tap the card on the M2 card reader
3. See error

Expected behavior
The collectPaymentMethod should return will result that is either a paymentIntent or error

Screenshots
If applicable, add screenshots to help explain your problem.

Stripe Terminal React Native SDK version
^0.0.1-beta.18

Smartphone (please complete the following information):

• Device: iPhone 15 Pro
• OS: 17.4.1

Additional context
Add any other context about the problem here.

[nazli-stripe]

This seems to be a bug with how we are doing mapping for PaymentIntents, fixing in this PR: #698

[asher5]

@nazli-stripe is there a timeline to release the fixes?

[nazli-stripe]

we are aiming for early June

[nazli-stripe]

hey @asher5 we just release beta.19. Can you upgrade and let us know if it fixes the issue? Thanks!