wayland/idle-notify: add idle notify

src/wayland/idle_notify/test/manual/idle_notify.qml

@@ -0,0 +1,44 @@
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import Quickshell
+import Quickshell.Wayland
+
+FloatingWindow {
+	color: contentItem.palette.window
+
+	IdleMonitor {
+		id: monitor
+		enabled: enabledCb.checked
+		timeout: timeoutSb.value
+		respectInhibitors: respectInhibitorsCb.checked
+	}
+
+	ColumnLayout {
+		Label { text: `Is idle? ${monitor.isIdle}` }
+
+		CheckBox {
+			id: enabledCb
+			text: "Enabled"
+			checked: true
+		}
+
+		CheckBox {
+			id: respectInhibitorsCb
+			text: "Respect Inhibitors"
+			checked: true
+		}
+
+		RowLayout {
+			Label { text: "Timeout" }
+
+			SpinBox {
+				id: timeoutSb
+				editable: true
+				from: 0
+				to: 1000
+				value: 5
+			}
+		}
+	}
+}