[MOB-1120] Add amex card number format and fix saved card logo

[aw-hector]

This pr adds:

• Amex specific card spacing pattern

And fixes:

• Amex logo isn't shown due to the payment consent response uses full name (i.e. american express) which is different from payment methods config response.

[github-actions[bot]]

Unit Test Results

252 tests  +4   252 :heavy_check_mark: +4   1m 34s :stopwatch: +8s   98 suites ±0       0 :zzz: ±0    98 files   ±0       0 :x: ±0 

Results for commit b9e4dae5. ± Comparison against base commit 53867ee2.

:recycle: This comment has been updated with latest results.