Change keep awake icon to local cafe (#3936)

port 2.0

(cherry picked from commit 4a9ab29515)

quickshell/Modules/ControlCenter/Models/WidgetModel.qml

@@ -295,7 +295,7 @@ QtObject {
             "id": "idleInhibitor",
             "text": I18n.tr("Keep Awake"),
             "description": I18n.tr("Prevent screen timeout"),
-            "icon": "motion_sensor_active",
+            "icon": "local_cafe",
             "type": "toggle",
             "category": "system",
             "enabled": true