(Reuters) - Spotify Technology SA's paid music subscribers surged to 130 million in the first quarter, driving shares in the Swedish music streaming firm higher as its business model proved more resilient than expected in the coronavirus lockdowns.A double-digit rise in quarterly revenue helped the company weather a virus-related decline in ad sales, which contributed less than 10% to overall revenue.But Spotify, which earns by a mixture of subscriptions and showing ads to non-paying users,..