fix: hide notification when battery is at -1

Author: Maasea

src/ui.py

@@ -163,8 +163,7 @@ def generateIcon(self, battery, isCharge):
 
     def updateBatteryInfo(self):
         battery, isCharge = self.getBatteryInfo()
-        if isCharge == 0 and self.rebt.show_battery_notification(battery):
-            print('show')
+        if isCharge == 0 and battery > 0 and self.rebt.show_battery_notification(battery):
             self.showNotification("Low Battery", f"Current Battery Level: {battery}%")
 
         self.curBattery = battery