Custom Sheet lets you enter the same card as many times as you want

[jogo-devs]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Initialize CustomSheet
2. Show CustomSheet
3. Insert a card already added previously to this same account
4. CustomSheet allows you to add duplicate cards

Expected behavior
It does not make sense that a user can add the same card number associated with the same account, it should show an error saying "Card is already associated with your account"

Screenshots

Desktop (please complete the following information):

• OS: iOS / Android
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: All Models
• OS: all versions
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]