[FIX] website: set controller favicon.ico as nomultilang

Avoid redirect from /favicon.ico to /<lang>/facivon.ico at each request

closes odoo/odoo#40535

X-original-commit: 94bcbc92e5e5a6fd3de7267e3c01f8c11fb045f4
Signed-off-by: Jérémy Kersten (jke) <jke@openerp.com>

addons/website/controllers/main.py

@@ -484,7 +484,7 @@ class WebsiteBinary(http.Controller):
                 kw['unique'] = unique
         return Binary().content_image(**kw)
 
-    @http.route(['/favicon.ico'], type='http', auth='public', website=True, sitemap=False)
+    @http.route(['/favicon.ico'], type='http', auth='public', website=True, multilang=False, sitemap=False)
     def favicon(self, **kw):
         # when opening a pdf in chrome, chrome tries to open the default favicon url
         return self.content_image(model='website', id=str(request.website.id), field='favicon', **kw)