Fix: closed invoices with generated number

[annvelents]

context
Before we were setting invoice status to finalized or draft before calculating fees (because before calculating fees we don't know if it will be 0-invoice or no, and as result we don't know if it will be :finalized or :closed)

but inside calculate_fees_service we save the invoice, so if it's in finalized status we would generate number for this invoice, which is not needed for closed invoices

as result we should set invoice to finalized or to closed after we calculated fees.

so the definition if the process is finalization or drafting of the invoice should be done not only by status, but also by the context.

what was done

• instead of setting invoice status before calculating fees, set up context
• define if the process is finalization for applying credit notes the same way we define it for tax reporting