[IMP] : Display tooltip on kanban record

task_id: https://www.odoo.com/web#id=9326&view_type=form&model=project.task&action=333&active_id=131
padi:  https://pad.odoo.com/p/r.9l5o56VSWaCxwrU4
"display_title" not a self describing attribute name, pls rename it.