doc : RErrorWidget and EmptyWidget

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

@@ -1,31 +1,31 @@
 import 'package:flutter/material.dart';
 import 'package:rasadyar_core/core.dart';
 
-class EmptyWidget extends StatelessWidget {
-  const EmptyWidget({super.key, this.onRefresh});
 
-  final RefreshCallback? onRefresh;
+/// see this link for UI reference:
+/// [https://github.com/mirani95/rasadyarApp/blob/develop/doc/EmptyWidget.png]
+
+class EmptyWidget extends StatelessWidget {
+  const EmptyWidget({super.key});
+
 
   @override
   Widget build(BuildContext context) {
-    return RefreshIndicator(
-      onRefresh: onRefresh ?? () async {},
-      child: SingleChildScrollView(
-        physics: AlwaysScrollableScrollPhysics(),
-        child: SizedBox(
-          height: MediaQuery.of(context).size.height / 1.5,
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            crossAxisAlignment: CrossAxisAlignment.center,
-            children: [
-              Row(),
-              Assets.vec.emptySvg.svg(height: 190.h),
-              Text(
-                'داده ای یافت نشد!',
-                style: AppFonts.yekan20.copyWith(color: AppColor.textColor),
-              ),
-            ],
-          ),
+    return SingleChildScrollView(
+      physics: AlwaysScrollableScrollPhysics(),
+      child: SizedBox(
+        height: MediaQuery.of(context).size.height / 1.5,
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: [
+            Row(),
+            Assets.vec.emptySvg.svg(height: 190.h),
+            Text(
+              'داده ای یافت نشد!',
+              style: AppFonts.yekan20.copyWith(color: AppColor.textColor),
+            ),
+          ],
         ),
       ),
     );

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

@@ -1,8 +1,13 @@
 import 'package:flutter/material.dart';
 import 'package:rasadyar_core/core.dart';
 
-class ErrorWidget extends StatelessWidget {
-  const ErrorWidget({super.key});
+
+/// see this link for UI reference:
+/// [https://github.com/mirani95/rasadyarApp/blob/develop/doc/RErrorWidget.png]
+
+
+class RErrorWidget extends StatelessWidget {
+  const RErrorWidget({super.key});
 
   @override
   Widget build(BuildContext context) {