[FEATURE REQUEST]Add filament runout sensor status to WEB UI

[sstefanov]

It will be excellent if there is possibility to monitor filament sensor status in Marlin messages and display it in WEB UI

For example if filament is OK, display green sign, when runs out, display red sign and some message.

[luc-github]

the M119 command in Marlin and equivalent for others FW is not monitored because not everyone need it especially as polling command :
https://esp3d.io/ESP3D-WebUI/Version_3.X/documentation/polling/
this is typicaly something that should be done using an extension :
https://esp3d.io/ESP3D-WebUI/Version_3.X/documentation/extensions/
https://esp3d.io/ESP3D-WebUI/Version_3.X/documentation/api/extensions/

Feel free to push a PR to add such extension https://github.com/luc-github/ESP3D-WEBUI/tree/3.0/extensions

[sstefanov]

Marlin was set to report the status without polling. And I use ESP3D version 2. I'll check if I can make something with version 3.

[luc-github]

yes I know have autoreport on some features, but still need to catch the report and display it.
v2.x is frozen only V3.x will take changes if any