feat : error widget and error json

packages/core/lib/presentation/widget/error_widget.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+import 'package:rasadyar_core/core.dart';
+
+class ErrorWidget extends StatelessWidget {
+  const ErrorWidget({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      crossAxisAlignment: CrossAxisAlignment.center,
+      children: [
+        Row(),
+        Assets.anim.error.lottie(width: 160.w, height: 160.h),
+        Text(
+          'مشکلی پیش آمده\nدوباره تلاش کنید..',
+          style: AppFonts.yekan20.copyWith(color: AppColor.textColor),
+        ),
+      ],
+    );
+  }
+}