Support for virtual leds plugin

[thetic]

Requested feature:

When using the Klipper virtual LEDs plugin, I would like to see the virtual LEDs listed on the web UI like "normal" neopixels.

Solves the following problem:

No response

Additional information:

No response

[vertexbz]

Can be done in the Klipper extension itself

[meteyou]

maybe i can work together with the virtual led maintainer. mainsail itself also has a similar function to split long chains (only in the gui, so it doesn't help with macros). so I could display it identically.

but normally, i only integrate native klipper functions and no "unofficial plugins"...

[thetic]

more context: Klipper3d/klipper#5788

[meteyou]

@thetic i had a short discussion with @julianschill to be up-to-date about this topic.

there is already a new PR for this feature in Klipper with all missing parts to be mergeable: Klipper3d/klipper#6446

I will check this PR to be ready for a merge and i would love this feature in Klipper & Mainsail!