[IMP] survey: Create pages without modal

This commit customizes the one2many field so that
every questions with the flag "is_page" are editable inline
directly in the tree view with no modal on the survey form.

Questions who don't have that flag are still created the same way
as it was before.

TaskID:1999109
PR: #35170

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>


Co-authored-by: Jérémy Hennecart <jeh@odoo.com>
Co-authored-by: Quentin Mourrier <qmo@odoo.com>