fix if no groups defined

Author: karussell

config.js

@@ -48,6 +48,7 @@ const config = {
 
     // You can 'collapse' or group certain profiles to reduce the number of profiles in the panel. Instead they're listed in the settings but still a profile icon is shown.
     // Note: the name of the group must be the default option for this group.
+    profile_group_mapping: {}
     // profile_group_mapping: {
     //  car: {
     //    options: [