Previously, there was only one static "Sale" ribbon. Users might want to
have many types of ribbons, for different levels of sales, or to
indicate that a product is sold out. This commit lets the user create
custom ribbons and use them on prodcuts on the shop page. Additionally,
setting a ribbon on a product used to require a reload, this is no
longer the case. All ribbon modifications are stored in a cache and the
RPCs to put them into effect are only done on save.
task-1981170
Part of odoo/odoo#47574
Related: odoo/upgrade#1079
Related: odoo/design-themes#219
Signed-off-by: Quentin Smetz (qsm) <qsm@odoo.com>
Samuel Degueldre
c058f19bfa