Refactor UI code for better readability and consistency

- Improved formatting of ListTile icons and text styles in settings_screen.dart, telemetry_screen.dart, usb_screen.dart, gif_picker.dart, path_editor_sheet.dart, repeater_login_dialog.dart, and room_login_dialog.dart for better readability.
- Consolidated TextStyle definitions into single lines where applicable.
- Updated notification_service.dart to enhance readability of notification ID assignment.
- Simplified function signatures in routing_sheet.dart for clarity.
- Cleaned up test assertions in usb_flow_test.dart for conciseness.
- Removed unused translations in untranslated.json to streamline localization files.

lib/connector/meshcore_connector.dart

@@ -1484,23 +1484,22 @@ class MeshCoreConnector extends ChangeNotifier {
       _linuxSystemScanResults
         ..clear()
         ..addAll(
-          systemDevices
-              .map(
-                (device) => ScanResult(
-                  device: device,
-                  advertisementData: AdvertisementData(
-                    advName: device.platformName,
-                    txPowerLevel: null,
-                    appearance: null,
-                    connectable: true,
-                    manufacturerData: const <int, List<int>>{},
-                    serviceData: const <Guid, List<int>>{},
-                    serviceUuids: <Guid>[Guid(MeshCoreUuids.service)],
-                  ),
-                  rssi: 0,
-                  timeStamp: DateTime.now(),
-                ),
+          systemDevices.map(
+            (device) => ScanResult(
+              device: device,
+              advertisementData: AdvertisementData(
+                advName: device.platformName,
+                txPowerLevel: null,
+                appearance: null,
+                connectable: true,
+                manufacturerData: const <int, List<int>>{},
+                serviceData: const <Guid, List<int>>{},
+                serviceUuids: <Guid>[Guid(MeshCoreUuids.service)],
               ),
+              rssi: 0,
+              timeStamp: DateTime.now(),
+            ),
+          ),
         );
       _mergeLinuxSystemScanResults();
       notifyListeners();

lib/connector/meshcore_protocol.dart

@@ -956,7 +956,7 @@ Uint8List buildSendTelemetryReq(Uint8List? pubKey) {
     writer.writeBytes(Uint8List(3)); // reserved bytes
     writer.writeBytes(pubKey);
   } else {
-    writer.writeBytes(Uint8List(4)); // reserved bytes
+    writer.writeBytes(Uint8List(3)); // reserved bytes
   }
   return writer.toBytes();
 }