Cleared unused listeners, and optimize uianimation code (#213)

Co-authored-by: widlam <mikolaj.widla@gmail.com>
Reviewed-on: #213
Reviewed-by: Adam Bem <bema@noreply.example.com>
Co-authored-by: Mikolaj Widla <widlam@noreply.example.com>
Co-committed-by: Mikolaj Widla <widlam@noreply.example.com>

Frontend/assets/scripts/tools/mock/datatransfer.js

@@ -140,7 +140,7 @@ function loadFetchedMessage(){
         json.messageBody,
         json.httpStatus);
     fillHeaderTable(json.httpHeaders);
-    initializeHistory();
+    getHistoryData();
     refreshHeaderTable(document.innerHTML);
 }