Add localization support and translation script

- Introduced a new extension for localization in Flutter with `LocalizationExtension` in `l10n.dart`.
- Added a Python script `translate.py` for translating ARB/JSON localization files using a local Ollama model, preserving keys and placeholders, and handling ICU format rules.

lib/utils/dialog_utils.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import '../connector/meshcore_connector.dart';
+import '../l10n/l10n.dart';
 
 /// Shows a confirmation dialog before disconnecting from the device.
 /// Returns true if user confirmed and disconnect completed, false otherwise.
@@ -7,20 +8,20 @@ Future<bool> showDisconnectDialog(
   BuildContext context,
   MeshCoreConnector connector,
 ) async {
+  final l10n = context.l10n;
   final confirmed = await showDialog<bool>(
     context: context,
     builder: (context) => AlertDialog(
-      title: const Text('Disconnect'),
-      content: const Text(
-          'Are you sure you want to disconnect from this device?'),
+      title: Text(l10n.dialog_disconnect),
+      content: Text(l10n.dialog_disconnectConfirm),
       actions: [
         TextButton(
           onPressed: () => Navigator.pop(context, false),
-          child: const Text('Cancel'),
+          child: Text(l10n.common_cancel),
         ),
         TextButton(
           onPressed: () => Navigator.pop(context, true),
-          child: const Text('Disconnect'),
+          child: Text(l10n.common_disconnect),
         ),
       ],
     ),