[FIX] mail: translate model names

In the activities, the name of the models were not translated
This is only the server side of the fix.
The context needs to be added in the JS call in another commit

opw-805431

addons/mail/models/res_users.py

@@ -125,7 +125,7 @@ def message_get_suggested_recipients(self):
 
     @api.model
     def activity_user_count(self):
-        query = """SELECT m.name, count(*), act.res_model as model,
+        query = """SELECT m.id, count(*), act.res_model as model,
                         CASE
                             WHEN now()::date - act.date_deadline::date = 0 Then 'today'
                             WHEN now()::date - act.date_deadline::date > 0 Then 'overdue'
@@ -134,16 +134,18 @@ def activity_user_count(self):
                     FROM mail_activity AS act
                     JOIN ir_model AS m ON act.res_model_id = m.id
                     WHERE user_id = %s
-                    GROUP BY m.name, states, act.res_model;
+                    GROUP BY m.id, states, act.res_model;
                     """
         self.env.cr.execute(query, [self.env.uid])
         activity_data = self.env.cr.dictfetchall()
+        model_ids = [a['id'] for a in activity_data]
+        model_names = {n[0]:n[1] for n in self.env['ir.model'].browse(model_ids).name_get()}
 
         user_activities = {}
         for activity in activity_data:
             if not user_activities.get(activity['model']):
                 user_activities[activity['model']] = {
-                    'name': activity['name'],
+                    'name': model_names[activity['id']],
                     'model': activity['model'],
                     'icon': modules.module.get_module_icon(self.env[activity['model']]._original_module),
                     'total_count': 0, 'today_count': 0, 'overdue_count': 0, 'planned_count': 0,