warn on low battery

.config/quickshell/modules/bar/Bar.qml

@@ -241,7 +241,7 @@ Scope {
                             Layout.alignment: Qt.AlignVCenter
                         }
 
-                        Battery {
+                        BatteryIndicator {
                             visible: (barRoot.useShortenedForm < 2 && UPower.displayDevice.isLaptopBattery)
                             Layout.alignment: Qt.AlignVCenter
                         }

.config/quickshell/modules/bar/BatteryIndicator.qml

@@ -1,5 +1,6 @@
 import "root:/modules/common"
 import "root:/modules/common/widgets"
+import "root:/services"
 import QtQuick
 import QtQuick.Layouts
 import Quickshell
@@ -9,11 +10,11 @@ import Quickshell.Services.UPower
 Rectangle {
     id: root
     property bool borderless: ConfigOptions.bar.borderless
-    readonly property var chargeState: UPower.displayDevice.state
-    readonly property bool isCharging: chargeState == UPowerDeviceState.Charging
-    readonly property bool isPluggedIn: isCharging || chargeState == UPowerDeviceState.PendingCharge
-    readonly property real percentage: UPower.displayDevice.percentage
-    readonly property bool isLow: percentage <= ConfigOptions.bar.batteryLowThreshold / 100
+    readonly property var chargeState: Battery.chargeState
+    readonly property bool isCharging: Battery.isCharging
+    readonly property bool isPluggedIn: Battery.isPluggedIn
+    readonly property real percentage: Battery.percentage
+    readonly property bool isLow: percentage <= ConfigOptions.battery.low / 100
     readonly property color batteryLowBackground: Appearance.m3colors.darkmode ? Appearance.m3colors.m3error : Appearance.m3colors.m3errorContainer
     readonly property color batteryLowOnBackground: Appearance.m3colors.darkmode ? Appearance.m3colors.m3errorContainer : Appearance.m3colors.m3error