Most will be families living at the same address. And, if they are not,
it is far easier to replace the incorrect address with the actual,
rather than write the same address to all family members under the same
household.
Copied as much as i could from Numerus, and made as few modifications as
i could to adapt to this code base; it is, quite frankly, a piece of
shit.
We need to be able to create invoices from scratch “just in case”,
apparently, but it is not yet possible to create an invoice from a
booking.