Only ask for last 4 digits of SSN

[iwiznia]

Fixed Issues

$ https://github.com/Expensify/Expensify/issues/166493

Tests

• Make sure you have a bankAccount with addressName = Expensify Wallet and addressState = false (a silver wallet)
• Go to /enable-payments in e.cash
• Select any form, it will give you a link
• Open that link in your phone and do the checks
• Go back to the browser, you should be in this page:
  
• Complete everything
• Check it works (disclaimer: I could not make the idology tests pass in dev, but they should work in stg/prod).

Tested On

• Web
• Mobile Web
• Desktop
• iOS
• Android

Screenshots

[Dal-Papa]

NAB: It was called Número de Seguridad Social and we changed it to SSN, is that cool ?

[OSBotify]

✋ This PR was not deployed to staging yet because QA is ongoing. It will be automatically deployed to staging after the next production release.

[OSBotify]

🚀 Deployed to staging in version: 1.0.73-4🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅

[isagoico]

@iwiznia Hello! Not sure if we're able to test this PR. We have not been included in the wallet beta yet and we're still unable to add bank accounts via e.cash. Can you check if this is internal?

[iwiznia]

This needs another PR that's not deployed yet, so no QA.

[OSBotify]

🚀 Deployed to production in version: 1.0.74-0🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅