By Neil Jerome Morales and Karen Lema MANILA (Reuters) – Campaigning for the Philippines’ general election gets underway officially on Tuesday, with COVID-19 curtailing the traditional fanfare and big rallies and turning the focus to social media as the key battleground for the May 9 contest. As with the 2016 polls that catapulted Rodrigo Duterte to the presidency, social media will be crucial in the three-month election buildup, while platforms will be under pressure to combat the rampant misinformation that has intensified in the Philippines in recent years, driving hate campaigns and deepen…