feat: new date picker and new logic

packages/core/lib/utils/network/safe_call_utils.dart

@@ -67,7 +67,7 @@ Future<T?> gSafeCall<T>({
 
       if (error is DioException && error.response?.statusCode == 401) {
         if (showError) {
-          (onShowErrorMessage ?? _defaultShowErrorMessage)('خطا در احراز هویت');
+          (onShowErrorMessage ?? defaultShowErrorMessage)('خطا در احراز هویت');
         }
         onError?.call(error, stackTrace);
         return null;
@@ -76,7 +76,7 @@ Future<T?> gSafeCall<T>({
       if (retryCount > maxRetries || !_isRetryableError(error)) {
         if (showError) {
           final message = _getErrorMessage(error);
-          (onShowErrorMessage ?? _defaultShowErrorMessage)(message);
+          (onShowErrorMessage ?? defaultShowErrorMessage)(message);
         }
         onError?.call(error, stackTrace);
         return null;
@@ -171,7 +171,7 @@ void defaultShowSuccessMessage(
   );
 }
 
-void _defaultShowErrorMessage(String message) {
+void defaultShowErrorMessage(String message) {
   Get.snackbar(
     'خطا',
     message,