PARIS, May 19 (Reuters) – EU industry chief Thierry Breton said on Friday he had recently spoken with TikTok Chief Executive Shou Zi Chew and told him there was still a lot to do for the Chinese-owned social network in order to comply with EU rules. "I told him that, as of now, there is still a lot of room for improvement, in terms of having more content moderation, avoiding excesses, guaranteeing a safe use of data, in particular, the data of our children", Breton told France 2 television. Various Western countries including Britain, the United States and several European…