feat: Enhance billing display with currency formatting, improve dynamic form field management by clearing cached controllers and using unique keys, and add mailto URL scheme support.

lib/features/faq/presentation/screens/faq_screen.dart

@@ -400,17 +400,15 @@ class _StillNeedHelpSection extends ConsumerWidget {
               _buildSupportButton(
                 icon: Icons.email_outlined,
                 label: 'Email Support',
-                onTap: () async {
+                onTap: () {
                   final uri = Uri(
                     scheme: 'mailto',
-                    path: 'support@requesn.com',
+                    path: 'support@re-quest.co',
                     queryParameters: {
                       'subject': 'Support Request',
                     },
                   );
-                  if (await canLaunchUrl(uri)) {
-                    await launchUrl(uri);
-                  }
+                  launchUrl(uri, mode: LaunchMode.externalApplication);
                 },
               ),
             ],