features_map() :: %{required(atom()) => module() | features_map()}

menu_definition() :: [menu_item()]

menu_item() ::
  %{type: :dashboard}
  | %{type: :feature, feature: String.t()}
  | %{
      type: :group,
      title: String.t(),
      icon: String.t() | nil,
      features: [[atom()]]
    }