[Add card] Integrate the credit card provider validation to validate the card number

[gabrielluong]

When mozilla-mobile/android-components#9813 lands, we should ensure we are validating the card number in the "Add card" screen.

This depends on #18243 and mozilla-mobile/android-components#9813.

┆Issue is synchronized with this Jira Task

[gabrielluong]

Since we added some basic credit card validation with the Luhn algorithm in #19065, let's go ahead with adding the form input validation. We will eventually refactor some of the credit card validation to be able to determine the credit card type from mozilla-mobile/android-components#9813. In the meantime, we can use validateCreditCardNumber that was added.

[mcarare]

@gabrielluong Is there a Figma link or on another platform for the designs? Thank you!

[sflorean]

Tested on Nightly 5/7 with Samsung Note 10 (Android 10) and here are the results:

• couldn't add an invalid card
• it doesn't matter if the card's information aren't correct (name, date), the card was added
• here is a screenshot of the added card

cc @gabrielluong @mcarare

I will remove the qa label until the feedback is received.

[mcarare]

@sflorean This is not related to card validation, but to the way a saved card is displayed. I would open that in a separate issue to track the changes needed. Thank you for testing!

[sflorean]

Thank you @mcarare I will open a new issue.

[abodea]

I added the issues that were discussed above, you can find it here #19482.