[FIX] website_sale: abandoned cart wrong template

To reproduce the issue:
1. Go to Settings > Website
2. Activate "Automatically send abandoned checkout emails"
3. Click on "Customize Abandoned Email Template"
4. Template "Gamification" appears

Error: The template "Ecommerce: Cart Recovery" should have
appeared instead

The hardcoded res_id was wrong

OPW-3207424

closes odoo/odoo#116002

Signed-off-by: Demany Antoine (ande) <ande@odoo.com>

addons/website_sale/models/res_config_settings.py

@@ -148,5 +148,5 @@ class ResConfigSettings(models.TransientModel):
             'res_model': 'mail.template',
             'view_id': False,
             'view_mode': 'form',
-            'res_id': 15
+            'res_id': self.env['ir.model.data']._xmlid_to_res_id("website_sale.mail_template_sale_cart_recovery"),
         }