Make login template use same logo as home page

tailbone/views/auth.py

@@ -117,9 +117,14 @@ class AuthenticationView(View):
             else:
                 self.request.session.flash("Invalid username or password", 'error')
 
+        image_url = self.rattail_config.get(
+            'tailbone', 'main_image_url',
+            default=self.request.static_url('tailbone:static/img/home_logo.png'))
+
         return {
             'form': forms.FormRenderer(form),
             'referrer': referrer,
+            'image_url': image_url,
             'dialog': mobile,
         }