[FEAT] Add version detection for Umbriel window manager

[oldirtty]

Description

Feature description

Fastfetch already detects the Umbriel Wayland compositor as the WM process name (umbriel), but the {version} format variable comes back empty since wm_linux.c has no parser registered for it.

$ umbriel --version
umbriel 0.1.0 (7a448abe550e)

This is the same name version (hash) shape that niri --version produces, which fastfetch already parses. I'd like to add an equivalent getUmbriel() following that existing pattern.

Motivation

Native detection matches how fastfetch already handles other Wayland compositors (niri, sway, labwc, Hyprland), the WM module reports the compositor's actual version consistently across the ecosystem, without per-user config.

A command module workaround is possible, but it means every Umbriel user has to manually patch their own config to get parity with what niri/sway/etc. users already get for free. Since Umbriel already appears natively as the WM process name (umbriel) and its --version output follows the same name version (hash) format fastfetch already parses for niri, adding a dedicated parser seems reasonable to do.

Additional context

Umbriel is part of the Noctalia ecosystem, an independent Wayland compositor built on wlroots/umbrielfx (highly patched scenefx fork).

I already have a tested patch ready to submit as a PR if this is welcome:

{
  "type": "WM",
  "result": {
    "processName": "umbriel",
    "prettyName": "umbriel",
    "protocolName": "Wayland",
    "pluginName": "",
    "version": "0.1.0"
  }
}

[CarterLi]

Go for it