[FIX] web: kanban quick create properly disabled

when grouped on field types for which it isn't supported.

Rev. 42e1efde disabled the quick create feature when the view is
grouped by date(time) fields. However, it hasn't been correctly
forwardported to 11.0 (with the new views). Indeed, the check was
done only once, at the initilization of the view. So if the user
selected another field to group by afterwards, the quick create
feature wasn't enabled/disabled accordingly.

Moreover, we didn't check if it was available when the user clicked
on CREATE in the control panel. So even if it wasn't (and thus if
there were no '+' icon in the columns), when the user clicked on
CREATE, the quick create widget was inserted in the first column.

This rev. fixes both issues.

Task 1878254

closes odoo/odoo#27867