**Apache Airflow version**: 2.1.1

**What happened**:

For user with "Op" role following menu items are not visible in navigation panel, however pages are accessible (roles has access to it):
- "Browse" -> "DAG Dependencies"
- "Admin" -> "Configurations"

**What you expected to happen**: available menu items in navigation panel
airflow/www/security.py
"""
        Creates a permission linking an action and resource.
        :param action_name: Name of existing action
        :type action_name: str
        :param resource_name: Name of existing resource
        :type resource_name: str
        :return: Resource created
        :rtype: PermissionView
        """
        return self.add_permission_view_menu(action_name, resource_name)
    def delete_permission(self, action_name: str, resource_name: str) -> None:
        """
        Deletes the permission linking an action->resource pair. Doesn't delete the
        underlying action or resource.
        :param action_name: Name of existing action
        :type action_name: str
        :param resource_name: Name of existing resource
        :type resource_name: str
        :return: None
        :rtype: None
        """
        self.del_permission_view_menu(action_name, resource_name)
    def delete_role(self, role_name):