[FIX] website_form_editor: whitelist fields for formbuilder
[FIX] website_form_editor: whitelist fields for formbuilder

Since odoo/odoo@2afb5b43ef0c7aa69b63145052a8d183d3d9d14b, fields should
be whitelisted explictly.

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo