The aim of this commit is to remove the specific complexity of the kanban's progress bar from the relational model, and put it into the kanban view itself. This commit prepares and is part of the task that aim to refactor the relational model and migrate it to owl. part-of task-id 3179751 closes odoo/odoo#119781 Signed-off-by: Aaron Bohy (aab) <aab@odoo.com> Co-authored-by: Aaron Bohy <aab@odoo.com>