Update 'cashier' to 'deposit'

[noon-dawg]

This task is to update the terminology for cashier and cashier strategies to deposit and deposit strategies.

Example:

• hosted cashiers -> hosted deposit forms
• cashier strategies -> deposit strategies

Context

The term cashier may be confusing because the form is used to make deposits and not to withdraw. Also, when generating a hosted cashier URL for a customer, the option in the UI is called Request deposit.

[noon-dawg]

TBD