Separator and titol in config page

[marcolino7]

Hi, it would be great to have separator line and/or title in config page, to better group settings, in example General, MQTT, etc To achieve this, a special json could be added to configuration.json, for example:

{
        "name": "-separator-"
},
{
        "name": "-heading-",
        "value": "MQTT",
},

This could be rendered and added to config page.

Thanks in advance Marco