The default image for the lunch product should be the one from the
category (added an image on the categories).
In case there is no image either on the product either on the category,
in the kanban view there should be a specific image (fork and knife
image)
Added some data in order to always have something displayed in the
kanban view
Fixed the layout of the dashboard
Bug fix, in `_check_wallet` there was a flush missing
Bug fix, `product_id` should be a many2one, not an integer field and the
orm should be used in order to avoid problems when favoriting products
This is a back2basics task
Task 2048246
closesodoo/odoo#35632
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>