This commit is to remove the "Create" button in a grouped kanban view
with create="0".
Problem:
In a kanban view with create="0", the "Create" button should never be
displayed.
How to reproduce :
- go to a kanban view with create="0"
- group the view
Result before:
The "Create" button is displayed
Result after:
The "Create" button is not displayed
closesodoo/odoo#98691
Signed-off-by: Julien Mougenot (jum) <jum@odoo.com>