Add 5 widgets inspired by Noctalia: activeWindow, nightLight, keyboardLayout, lockKeys, spacer

- activeWindow: shows the focused toplevel title from Quickshell.Wayland
  ToplevelManager. Left-click activates, middle-click closes, right-click
  killactive. Hidden in vertical bars to avoid title rotation noise.
- nightLight: toggles omarchy-toggle-nightlight; status detected via
  pgrep hyprsunset. Hides when hyprsunset isn't installed.
- keyboardLayout: shows current xkb layout short code, click cycles via
  hyprctl switchxkblayout. Refreshes on Hyprland activelayout events.
- lockKeys: caps/num/scroll lock indicators read from /sys/class/leds.
  Uses plain A/1/S letters; hides each indicator when off.
- spacer: configurable blank space (size) for layout tuning.

Defaults add activeWindow to the left section and nightLight to the
right section between audioPanel and brightness.

default/quickshell/bar/widgets/nightLight.qml

@@ -0,0 +1,71 @@
+import QtQuick
+import Quickshell
+import Quickshell.Io
+import "../common" as Common
+
+Item {
+  id: root
+
+  property QtObject bar: null
+  property string moduleName: "nightLight"
+  property var settings: ({})
+
+  property bool active: false
+  property bool toolAvailable: false
+
+  function setting(name, fallback) {
+    var value = settings ? settings[name] : undefined
+    return value === undefined || value === null ? fallback : value
+  }
+
+  function refresh() {
+    if (!statusProc.running) statusProc.running = true
+  }
+
+  function toggle() {
+    if (root.bar) root.bar.run("omarchy-toggle-nightlight")
+    refreshTimer.restart()
+  }
+
+  Component.onCompleted: refresh()
+
+  Process {
+    id: statusProc
+    command: ["bash", "-lc", "if command -v hyprsunset >/dev/null && pgrep -x hyprsunset >/dev/null 2>&1; then echo on; elif command -v hyprsunset >/dev/null; then echo off; else echo missing; fi"]
+    stdout: StdioCollector {
+      waitForEnd: true
+      onStreamFinished: {
+        var state = String(text || "").trim()
+        root.toolAvailable = state !== "missing"
+        root.active = state === "on"
+      }
+    }
+  }
+
+  Timer {
+    id: refreshTimer
+    interval: 1200
+    onTriggered: root.refresh()
+  }
+
+  Timer {
+    interval: 10000
+    running: true
+    repeat: true
+    onTriggered: root.refresh()
+  }
+
+  visible: toolAvailable
+  implicitWidth: button.implicitWidth
+  implicitHeight: button.implicitHeight
+
+  Common.WidgetButton {
+    id: button
+    anchors.fill: parent
+    bar: root.bar
+    text: root.active ? "󰖔" : "󰖙"
+    active: root.active
+    tooltipText: root.active ? "Night light on" : "Night light off"
+    onPressed: function() { root.toggle() }
+  }
+}