This update introduces a new button to streamline the process for French users switching between Peppol and PDP registration. Specifically, it addresses an issue encountered during testing where resetting the Peppol EAS setting in the demo company caused problems with reregistration flows. This enhancement improves usability and simplifies a key business operation.

#### [IMP] l10n_fr_pdp: fix visibility for peppol (non-PDP)
#### [IMP] account_peppol,l10n_fr_pdp: reregister
This commit adds a button so that users can reregister more easily.
This is i.e. useful to switch from Peppol to PDP for French users.

#### meta
task-6265603

Forward-Port-Of: odoo/odoo#267948

This update implements webhooks for exchanging Peppol documents in the French (l10n_fr_pdp) module. Previously missing due to porting delays, these webhooks ensure compliance with French tax regulations and improve data exchange efficiency. This change is driven by a business need for accurate and timely reporting.

We did not have webhooks in 18.0 for Peppol
and we did not have time to implement / test it during the FW-porting.

This commit adds the route on community side that is called from IAP.

task-None

IAP PR: https://github.com/odoo/iap-apps/pull/1639

Forward-Port-Of: odoo/odoo#268674
Forward-Port-Of: odoo/odoo#268472