[FIX] point_of_sale: handle failed push of invoiceable order

The use case is a bit complicated so brace yourself:
OFFLINE
- Make an order, invoiceble with a partner
- Pay it, validate it
- An error popup is shown
=> Before this commit, the payment screen was still on
=> After this commit, the receipt screen is shown proposing to
print the invoice

ONLINE
- Make another order, non invoiceable.
- Pay it, validate it
- Both orders are now pushed to the server
=> Before this commit, it was still possible to click on "Back"
and add some products. The result of this will be that the order in DB (server)
would not have the newly added product, whereas the ticket would state that there was a new product
=> After this commit, we basically block the edition of a paid and validated order, even if the invoice
printing failed

OPW 1971028

closes odoo/odoo#32885

Signed-off-by: Lucas Perais (lpe) <lpe@odoo.com>

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