Hong Kong establishment figures have penned mitigation letters for prominent democrats pleading for lighter sentences in a landmark national security case involving 47 pro-democracy figures. Former legislator Claudia Mo entered the dock on Wednesday morning smiling at the public gallery and making a “heart” gesture with her arms. Mo is one of 45 pro-democracy figures convicted of conspiring to commit subversion over an unofficial primary poll held in July 2020, which aimed to help the opposition camp win a majority in the city’s legislature. The defendants were said to have intended to abuse t…