add placeholder when volume mixer is empty

dots/.config/quickshell/ii/modules/ii/sidebarRight/volumeMixer/VolumeDialogContent.qml

@@ -30,6 +30,12 @@ ColumnLayout {
             required property var modelData
             node: modelData
         }
+        PagePlaceholder {
+            icon: "widgets"
+            title: Translation.tr("No applications")
+            shown: !root.hasApps
+            shape: MaterialShape.Shape.Cookie7Sided
+        }
     }
 
     StyledComboBox {

dots/.config/quickshell/ii/services/Audio.qml

@@ -18,6 +18,12 @@ Singleton {
     readonly property real hardMaxValue: 2.00 // People keep joking about setting volume to 5172% so...
     property string audioTheme: Config.options.sounds.theme
     property real value: sink?.audio.volume ?? 0
+    property bool micBeingAccessed: Pipewire.links.values.filter(link =>
+        !link.source.isStream && !link.source.isSink && link.target.isStream
+    ).length > 0
+    onMicBeingAccessedChanged: {
+        print(micBeingAccessed)
+    }
     function friendlyDeviceName(node) {
         return (node.nickname || node.description || Translation.tr("Unknown"));
     }