Implement comprehensive localization framework with English and Finnish support

- Add flutter_localizations dependency and l10n configuration
- Create ARB files for English (en) and Finnish (fi) translations
- Localize UI strings across all major components:
  * Navigation drawer and page titles
  * Scoring interface (arrows per end, ruleset names)
  * Scorecard headers (End, Arrows, Sum of 3/6, Accumulative)
  * Keypad functional buttons (CLEAR/TYHJENNÄ, CLOSE/SULJE)
  * Settings page placeholder content
  * Dialog messages and confirmation prompts
- Preserve universal archery scoring notation (X, 10, 9, M remain unlocalised)
- Use authentic Finnish archery terminology throughout
- Configure main app with proper localization delegates and supported locales
- Generate localization classes automatically via flutter_localizations

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

lib/presentation/pages/settings_page.dart

@@ -1,49 +1,52 @@
 import 'package:flutter/material.dart';
+import '../../config/localization/generated/app_localizations.dart';
 
 class SettingsPage extends StatelessWidget {
   const SettingsPage({super.key});
 
   @override
   Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+    
     return Scaffold(
       appBar: AppBar(
-        title: const Text('Settings'),
+        title: Text(l10n.settingsTitle),
         backgroundColor: Theme.of(context).colorScheme.inversePrimary,
       ),
-      body: const Padding(
-        padding: EdgeInsets.all(16.0),
+      body: Padding(
+        padding: const EdgeInsets.all(16.0),
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             Text(
-              'Settings',
-              style: TextStyle(
+              l10n.settingsTitle,
+              style: const TextStyle(
                 fontSize: 24,
                 fontWeight: FontWeight.bold,
               ),
             ),
-            SizedBox(height: 24),
+            const SizedBox(height: 24),
             Text(
-              'This is a placeholder settings page.',
-              style: TextStyle(
+              l10n.settingsPlaceholder,
+              style: const TextStyle(
                 fontSize: 16,
                 color: Colors.grey,
               ),
             ),
-            SizedBox(height: 16),
+            const SizedBox(height: 16),
             Text(
-              'Future settings will include:',
-              style: TextStyle(
+              l10n.settingsFutureWillInclude,
+              style: const TextStyle(
                 fontSize: 16,
                 fontWeight: FontWeight.w500,
               ),
             ),
-            SizedBox(height: 8),
-            Text('• Color scheme preferences'),
-            Text('• Default arrow counts'),
-            Text('• Score input preferences'),
-            Text('• Export settings'),
-            Text('• Session management'),
+            const SizedBox(height: 8),
+            Text(l10n.settingsColorScheme),
+            Text(l10n.settingsDefaultArrows),
+            Text(l10n.settingsScoreInput),
+            Text(l10n.settingsExportOptions),
+            Text(l10n.settingsSessionManagement),
           ],
         ),
       ),