[Tracking] Design polish items

[shawnborton]

This tracking issue covers the various design polish items we want to implement across both web and mobile. See Slack (internal) for more context on this project.

Sub-issues (I will be making these shortly):

• Use .5px borders on table rows for mobile
• Reduce size of credit card avatars
• Add brand magic to Home > Concierge card

cc @dubielzyk-expensify @dannymcclain @grgia @JmillsExpensify

Issue Owner

Current Issue Owner: @huult

[grgia]

🤟 Rad