[IMP] accounting/electronic_invoicing: update factur-x usage

Update Factur-X mentions and screenshot.

task-2957808
https://github.com/odoo/odoo/pull/99699

closes odoo/documentation#2789

X-original-commit: 1387c5e8c3
Related: odoo/odoo#102311
Related: odoo/enterprise#32344
Signed-off-by: Julien Van Roy <juvr@odoo.com>
Signed-off-by: Castillo Jonathan (jcs) <jcs@odoo.com>

content/applications/finance/accounting/receivables/customer_invoices/electronic_invoicing.rst

@@ -20,8 +20,8 @@ Odoo supports, among others, the following formats.
 
    * - Format Name
      - Applicability
-   * - Factur-X (CII)
-     - Default format on Odoo (enabled by default)
+   * - Factur-X (PDF/A-3)
+     - For French and German companies
    * - Peppol BIS Billing 3.0 (UBL)
      - For companies whose countries are part of the `EAS list
        <https://docs.peppol.eu/poacc/billing/3.0/codelist/eas/>`_
@@ -68,8 +68,9 @@ visible in the attachment section, or embedded in the PDF.
 .. note::
    - For E-FFF, the xml file only appears after having generated the PDF (:guilabel:`Print` or
      :guilabel:`Send & Print` button), since the PDF needs to be embedded inside the xml.
-   - By default, the :guilabel:`Factur-X` option is enabled. It means that an XML file is
-     automatically included in the PDF document that is sent.
+   - Every PDF generated from Odoo contains a :guilabel:`Factur-X` XML file (for interoperability purpose).
+     For German and French companies, the option :guilabel:`Factur-X (PDF/A-3)` in addition enables
+     validation checks on the invoice and generates a PDF/A-3 compliant file, required by plaftorms like Chorus Pro.
    - The formats available depend on the country registered in your company's :guilabel:`General
      Information`.
    - Odoo supports the **Peppol BIS Billing 3.0** format that can be used via existing access