By Alexander Marrow MOSCOW (Reuters) – A Russian lawmaker on Wednesday urged state institutions to stop using WhatsApp messenger and the industry ministry sought to promote domestically produced software as Russia tries to wean itself off Western technology. WhatsApp owner Meta Platforms Inc. was found guilty of “extremist activity” in Russia in March and later added to financial monitoring agency Rosfinmonitoring’s list of “terrorists and extremists”. Meta’s lawyer in court has said Meta was not carrying out extremist activity and was against Russophobia. Russia blocked Meta’s Facebook and In…