Synchronous operations are disallowed when getting content

Description

Prevent `Synchronous operations are disallowed` error when getting JSON from the server

Use ClientResourceOptions.JsonResponseBuffer setting for both input and output memory buffer threshold when serializing/deserializing using the Newtonsoft serializer.

The default value is now 256 kilobytes instead of 30kb

It has to be increased when using a global newtonsoft serializer and need to return big amounts of data (previous default was 30 kb).