Organises Laravel nova sidebar menu to use groups as top level items with costum icon support
Uses native javascript to open close groups and subgroups (without animations). Resource groups will be used as main category.
Copy all files to resource directory in your project.
Create new static function subGroup() and return name of your subGroup. Put your costum icons in /resources/views/nova/icons/ directory (file name will be slugified version of group name. Example group name: My New Group / File name: my-new-group.blade.php).
