From WhatsApp to Instagram, our social media presence creates the illusion that even after death, there is still an open conversation between us and a loved one. — My parents, grandmother, and I were 40 hours into a 56-hour stay-at-home order in our family’s Istanbul apartment in December when we decided to put up our New Year’s tree. My dad installed our topper, which resembles the Taj Mahal. Glitter stuck on our fingers, we danced around the tree…