[FW][FIX] l10n_es_edi_facturae: enable the feature for B2B only

[fw-bot]

To reproduce the issue: (Need website_sale)

1. Set up a website shop for ES company
   • With demo payment method
2. In Settings:
   • Website > Automatic Invoice: enabled
3. With a portal user, add a product to the cart
4. Open the cart
5. Pay with Demo

Error: The client is redirected to a page "Internal server error: The partner needs a set tax identification number or VAT number"

When post-processing the payment, and because of step 2, it leads to https://github.com/odoo/odoo/blob/20365bcab548c4a2d93194c8c2b8b2577d14d3ce/addons/l10n_es_edi_facturae/wizard/account_move_send.py#L86-L88 Where we will generate the data for the Facturae XML. There, we check few things, like the vat number of the partner: https://github.com/odoo/odoo/blob/e157cb2d8640fac1365beb135763cb25cff554f5/addons/l10n_es_edi_facturae/models/account_move.py#L312-L313 And since the portal user does not have any vat number, the error is raised.

The Facturae feature should only be enabled for B2B flows

OPW-4121724

Forward-Port-Of: odoo/odoo#181653

[robodoo]

[fw-bot]

This PR targets saas-17.2 and is part of the forward-port chain. Further PRs will be created up to master.

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port