Update IBAN on settings page to show new FOP display

This CL updates IBAN on settings page so that the nickname will
be shown on the main line if available, and masked IBAN value
will be shown on the second line if the nickname is available.

Before: https://screenshot.googleplex.com/BoXm2qKG2ShgvMo
After: https://screenshot.googleplex.com/BnH6KkMwfLi6k9Y

Design: go/fops-display-update-for-autofill-desktop
Mock: https://docs.google.com/presentation/d/1WEO9kNjT1xHG5GAs7wN0AcCD6kzTkjcopkrXiSXfw9o/edit?slide=id.g28f94fb54b7_0_91#slide=id.g28f94fb54b7_0_91

Bug: b:401602679
Change-Id: I89ea7b5e0b66dd484bf756fcbc9593ed97bd80a7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6348257
Commit-Queue: Qihui Zhao <qihuizhao@google.com>
Reviewed-by: Olivia Saul <jsaul@google.com>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Mohamed Amir Yosef <mamir@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1434383}