Do not access form submission REQUEST from the listbox list method,
as it is rendered asynchronously in ERP5JS

This reverts commit 35b2c024.

Allow edition in the new UI

This make everything slow as hell and prevent to quickly save.

Example: <h2 class="foo">bar</h2> => <h3 class="foo">bar</h3>

that would return the whole catalog

Only basic fields are supported (no gadgetfield for now).

See merge request nexedi/erp5!1275

- this action relies on paged.js library for pagination