misspelled amount

[mjvanhaastert]

deposit.amount -> deposit.Amount withdraw.amount -> withdraw.Amount

Describe Pull request simple misspelling of the key amount

If your PR is to fix an issue mention that issue here

Questions (please complete the following information):

• Have you personally loaded this code into an updated qbcore project and checked all it's functionality? yes
• Does your code fit the style guidelines? yes
• Does your PR fit the contribution guidelines? yes