Custom Marboo System Folder in Left Column

config in marboo_config.json to show the Recent Files：

    "show_recent_files_dir": true,

config in marboo_config.json to show the Marboo System Config Files：

    "show_media_dir": true,

The Default config in system_config.json is:

    "show_media_dir": false,
    "show_recent_files_dir": true,