refractor quick toggles data, add volume slider for waffles action center

dots/.config/quickshell/ii/modules/common/models/quickToggles/QuickToggleModel.qml

@@ -0,0 +1,22 @@
+import QtQuick
+
+QtObject {
+    // Textual info
+    required property string name
+    property string statusText
+    property string tooltipText: ""
+    property string icon: "close"
+
+    // State
+    property bool hasStatusText: true
+    property bool available: true
+    property bool toggled: false
+
+    // Interactions
+    required property var mainAction
+    property bool hasMenu: false
+    property var altAction: null
+
+    // Allow stuff like Processes to be declared freely
+    default property list<QtObject> data
+}