Since [1] when the "Padding (Y, X)" option was added, form elements are recognized as columns because they match the `.row > div` selector of that new option. This commit excludes those form elements from this option's selector. Steps to reproduce: - Drop a website form. - Click on field's input. => An empty "Column" editor appeared in the side panel, and an error occurred when trying to delete it. [1]: https://github.com/odoo/odoo/commit/11418cc6f0afcc8e14869f4f38ae0d6d462ac712 task-3748574 closes odoo/odoo#157572 Signed-off-by: Benjamin Vray (bvr) <bvr@odoo.com>