Added confirmation dialog when resetting configuration and leases

lib/widgets/confirm_action_modal.dart

@@ -0,0 +1,59 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+
+class ConfirmActionModal extends StatelessWidget {
+  final IconData icon;
+  final String title;
+  final String message;
+  final void Function() onConfirm;
+
+  const ConfirmActionModal({
+    Key? key,
+    required this.icon,
+    required this.title,
+    required this.message,
+    required this.onConfirm
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: Column(
+        children: [
+          Icon(
+            icon,
+            size: 24,
+            color: Theme.of(context).listTileTheme.iconColor
+          ),
+          const SizedBox(height: 16),
+          Text(
+            title,
+            style: TextStyle(
+              fontSize: 24,
+              color: Theme.of(context).colorScheme.onSurface
+            ),
+          )
+        ],
+      ),
+      content: Text(
+        message,
+        style: TextStyle(
+          color: Theme.of(context).colorScheme.onSurface
+        ),
+      ),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.pop(context), 
+          child: Text(AppLocalizations.of(context)!.cancel)
+        ),
+        TextButton(
+          onPressed: () {
+            onConfirm();
+            Navigator.pop(context);
+          }, 
+          child: Text(AppLocalizations.of(context)!.confirm)
+        ),
+      ],
+    );
+  }
+}