OSLO, July 16 (Reuters) – Shares of the online classifieds company Adevinta jumped on Thursday on a faster-than-expected business recovery, although its second-quarter results took a hit from the COVID-19 pandemic. Second-quarter earnings before interest, tax, depreciation and amortisation (EBITDA) fell 26% to 38.7 million euros, excluding joint ventures, but topped the 26.2 million euros…