[Dialog][Clank] Update card unmask dialog (CVC dialog) - Part 3

This change adds a layout for card details in the card unmask dialog. It
is filled with mock data.

Screenshot (FOP UI only visible in Debug builds): crbug.com/1356735/#c7

Implementation doc: https://docs.google.com/document/d/1Ck0WIei2vQJr9zvRzN6a5mS65X_wRqKaXg5v1604iYo

Change 1: crrev.com/c/4155032
Change 2: crrev.com/c/4020964
Change 3: This CL
Change 4: crrev.com/c/4030878
Change 5: crrev.com/c/4102981
Change 6: crrev.com/c/4153092

Bug: 1356735
Change-Id: I6e3fa62abe39d265bb1caae866363fe4d905e04d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4023850
Reviewed-by: Tanmoy Mollik <triploblastic@google.com>
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Commit-Queue: Vishwas Uppoor <vishwasuppoor@google.com>
Cr-Commit-Position: refs/heads/main@{#1095313}