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/screens/map_cache_screen.dart

@@ -458,7 +458,9 @@ class _MapCacheScreenState extends State<MapCacheScreen> {
                       padding: const EdgeInsets.only(top: 8),
                       child: Text(
                         l10n.mapCache_failedDownloads(_failedTiles),
-                        style: TextStyle(color: Theme.of(context).colorScheme.error),
+                        style: TextStyle(
+                          color: Theme.of(context).colorScheme.error,
+                        ),
                       ),
                     ),
                 ],