The demo data linked to the preparation display (in restaurant) where a bit light. This enterprise PR adds more data to the demo data and move some to previous stages so that user can play more with them. In this commit we adapt the number of customer to the corresponding orders that have more orderlines. Enterprise PR: odoo/enterprise#48841 closes odoo/odoo#138478 Signed-off-by: Joseph Caburnay (jcb) <jcb@odoo.com>