Kate Barton, global chief executive of Dentons, was in Indonesia on April 2 when US President Donald Trump unveiled plans for a broad new round of tariffs. From her vantage point in Jakarta, she watched Dentons’ local office — one of the country’s five leading law firms — move quickly to assess the fallout.  “We’re really good at global trade, and our scale was our secret sauce in the aftermath of ‘liberation day’,” she said.  “So many goods are manufactured in Indonesia, so the challenge was to help our clients, as there was a potentially huge cost uplift. What could…