(Credit: Jonathan Tichler/Metropolitan Opera) The Metropolitan Opera has announced that it will be canceling the remainder of the 2019-20 season in an effort to help contain the spread of COVID-19. Productions that are affected by this decision include “Maria Stuarda,” “Simon Boccanegra,” “Tosca,” “La Cenerentola,” “Katya Kabanova,” “Manon Lescaut,” “La Bohème,” “Werther,” and “Madama Butterfly.” The company noted that full-time {…}