[MBL-1391] Payment Intent StripeIntentContextType

[scottkicks]

📲 What

Updates the call to CreatePaymentIntent to include the StripeIntentContextType.

• We did this somewhat recently for the SetupIntent calls. Same idea here.

🤔 Why

We need this information to store additional metadata in the payment intent when it's created for on-session payments. This is helpful when the backend tries to debug any issues during checkout.

🛠 How

• Adds paymentIntentContext (defined in GraphAPI model) to CreatePaymentIntentInput
• Updates .createPaymentIntent call sites

👀 See

No UI changes

♿️ Accessibility

No accessibility changes needed

🏎 Performance

Same

✅ Acceptance criteria

• [x] No changes to normal Crowdfunding checkout flow
• [x] No changes to Late Pledge checkout flow
• [x] No changes to creating Setup Intents and Payment Intents

⏰ Next Steps

• [ ] Update the Late pledge feature flag to block late pledges on app versions that don't pass in the additional metadata (i.e. older app versions)
• [x] Note this for regression testing in the upcoming release since this touches pieces of both checkout flows.