make pw launch pavucontrol on click

modules/bar/Pw.qml

@@ -1,5 +1,5 @@
 import Quickshell.Services.Pipewire
-import Quickshell.Widgets
+import Quickshell.Io
 import QtQuick
 import QtQuick.Layouts
 import qs
@@ -8,7 +8,7 @@ import qs.settings
 
 Rectangle {
     id: root
-    color: Colors.base01
+    color: clickHandler.containsMouse ? Colors.base02 : Colors.base01
     property PwNode defaultAudio: Pipewire.ready ? Pipewire.preferredDefaultAudioSink : null
     property bool mute: Pipewire.ready ? defaultAudio?.audio.muted : null
     radius: Config.rounding
@@ -34,6 +34,12 @@ Rectangle {
         objects: [Pipewire.ready ? Pipewire.defaultAudioSink : null]
     }
 
+    Process {
+        id: pavuLauncher
+        command: ["pavucontrol"]
+        running: false
+    }
+
     RowLayout {
         id: pwLayout
         anchors.centerIn: root
@@ -47,4 +53,12 @@ Rectangle {
             opacity: root.defaultAudio?.audio.muted ? 0.6 : 1.0
         }
     }
+    MouseArea {
+        id: clickHandler
+        hoverEnabled: true
+        acceptedButtons: Qt.LeftButton
+        cursorShape: Qt.PointingHandCursor
+        anchors.fill: root
+        onClicked: pavuLauncher.running = true
+    }
 }