Angela Margos was among the first passengers in San Francisco to get on a plane headed for Hawaii, where travelers who test negative for the coronavirus will no longer be required to self-quarantine for two weeks. “Vacation, peace of mind,” said Margos, a nurse from San Carlos, California, of why she’s flying to Hawaii. The pre-travel testing program began Thursday and allows visitors who test negative for COVID-19 within 72 hours of their arrival in the islands to avoid quarantine — a measure that’s been in place for all arriving passengers for most of the year.