feat(django_apps): enable logging by default

modules/nixos/django-apps/default.nix

@@ -692,6 +692,19 @@ in
                   name
                   email
                 ]) ({ "Admins DGNum" = "admins+dj-${name}@dgnum.eu"; } // config.admins);
+                LOGGING = {
+                  version = 1;
+                  disable_existing_loggers = false;
+                  handlers = {
+                    console = {
+                      class = "logging.StreamHandler";
+                    };
+                  };
+                  root = {
+                    handlers = [ "console" ];
+                    level = "WARNING";
+                  };
+                };
               })
               // {
                 DJANGO_SETTINGS_MODULE = config.application.settingsModule;