Frontend Preparation Changes

Modify the Payment Method Interface:

Add a new Boolean property onlinePayment to the interface that categorizes each payment method as online or physical.

Update Payment Method Constants:

Update the constants that implement this interface adding the onlinePayment method here, the configuration should be:

const	onlinePayment value
PAYPAL_PAYMENT_METHOD_PLACEHOLDER	true
BLIK_PAYMENT_METHOD_PLACEHOLDER	true
SODEXO_VOUCHER_PAYMENT_METHOD_PLACEHOLDER	false
CHEQUE_GOURMET_VOUCHER_PAYMENT_METHOD_PLACEHOLDER	false
SODEXO_PAYMENT_METHOD_PLACEHOLDER	true
CHEQUE_GOURMET_PAYMENT_METHOD_PLACEHOLDER	true
PAYMENT_ON_DELIVERY_CARD_PAYMENT_METHOD_PLACEHOLDER	false
BIZUM_PAYMENT_METHOD_PLACEHOLDER	true
WAYLET_PAYMENT_METHOD_PLACEHOLDER	true

Create a Verification Method:

Implement a method to verify if a payment type is online. This method should also ensure that cash (not listed in the constants) is always considered false.