fix network data model and logger

Author: MahmoudMehisen

lib/models/network_data.dart

@@ -41,7 +41,7 @@ class NetworkData {
       NetworkData(
         url: url ?? this.url,
         method: method ?? this.method,
-        requestBody: requestBody ?? this.requestHeaders,
+        requestBody: requestBody ?? this.requestBody,
         responseBody: responseBody ?? this.responseBody,
         status: status ?? this.status,
         requestHeaders: requestHeaders ?? this.requestHeaders,

lib/utils/http_client_logger.dart

@@ -37,7 +37,7 @@ class HttpClientLogger {
       return;
     }
 
-    final responseHeaders = networkData.responseHeaders;
+    final responseHeaders = <String, dynamic>{};
     request.headers.forEach((String header, dynamic value) {
       responseHeaders[header] = value[0];
     });