The action used to send a PDP response is no longer shown as a large button on the invoice/bill screen. It is now available in the settings/menu options, reducing visual clutter while keeping the same functionality through other posting and cancellation actions.

No real need to show a big button for sending a response in PDP as cancelling and posting an invoice/bill would do the same, so we move it to the cog wheel menu

task-6274220

Forward-Port-Of: odoo/odoo#268846