Enhance theme management and UI settings

- Updated AppThemeMode enum to include icons and added fromValue method for easier theme retrieval.
- Modified ThemeBloc to manage currentTheme instead of themeMode.
- Enhanced ThemeState to reflect currentTheme and updated copyWith method.
- Added ThemeSettingsView for user-friendly theme selection in settings.
- Improved fluxLightTheme and fluxDarkTheme with new listTileTheme and color settings.
- Updated settings view to navigate to ThemeSettingsView.
- Added entitlements for network client permissions in Debug and Release profiles.
- Introduced Podfile.lock for dependency management.
- Added devtools_options.yaml for Dart & Flutter DevTools configuration.

lib/data/enums.dart

@@ -1,12 +1,20 @@
 import 'package:flutter/material.dart';
 
 enum AppThemeMode {
-  light('light', 'Chiaro', ThemeMode.light),
-  dark('dark', 'Scuro', ThemeMode.dark),
-  system('system', 'Sistema', ThemeMode.system);
+  light('light', 'Chiaro', ThemeMode.light, Icons.light_mode),
+  dark('dark', 'Scuro', ThemeMode.dark, Icons.dark_mode),
+  system('system', 'Sistema', ThemeMode.system, Icons.brightness_auto);
 
-  const AppThemeMode(this.value, this.label, this.themeMode);
+  const AppThemeMode(this.value, this.label, this.themeMode, this.icon);
   final String value;
   final String label;
   final ThemeMode themeMode;
+  final IconData icon;
+
+  static AppThemeMode fromValue(String? value) {
+    return AppThemeMode.values.firstWhere(
+      (e) => e.value == value,
+      orElse: () => AppThemeMode.system,
+    );
+  }
 }