[FIX] website_crm: fix lead creation through website_form

Before this commit, a message received through the contact us form did create a Lead, but any notification was impossible (even if a user was a follower of the relevant sales team.
This was because the default sales team is integrated in the values for create in models.py, which mail_thread can't see, but needs in order to notify

This commit corrects the behavior which now converge with standard lead creation by adding the default sales_team earlier in the values for create

OPW 762651

closes #19180

addons/website_crm/models/crm_lead.py

-from openerp import models, SUPERUSER_ID
+from openerp import models
 
 class Lead(models.Model):
     _inherit = 'crm.lead'
 
     def website_form_input_filter(self, request, values):
+        defaults = self.default_get(['medium_id', 'team_id'])
         values['medium_id'] = (
                 values.get('medium_id') or
-                self.default_get(['medium_id']).get('medium_id') or
+                defaults.get('medium_id') or
                 self.sudo().env['ir.model.data'].xmlid_to_res_id('utm.utm_medium_website')
         )
+
+        values['team_id'] = values.get('team_id') or defaults.get('team_id')
+
+        if not values['team_id']:
+            team_model = self.env['ir.model'].search([('model', '=', 'crm.team')])
+            lead_model = self.env['ir.model'].search([('model', '=', 'crm.lead')])
+
+            values['team_id'] = self.env['mail.alias'].search([('alias_model_id', '=', lead_model.id),
+                ('alias_parent_model_id', '=', team_model.id),
+                ('alias_name', 'ilike', '%\web%')], limit=1).alias_parent_thread_id
+
         return values