Ryanair says its legal challenge to the government’s Covid-19 travel policy is about personal liberty and the rights of individuals. But of course, it is also about business and money. The coronavirus pandemic has devastated the trillion-euro global travel industry and the budget airline, among the largest in Europe, has not escaped its chilling economic effects. Last month Ryanair recorded a quarterly loss of €185 million to the end of June compared to a profit of €243 million for the same period in 2019.  It was the most challenging quarter in the airline’s 35-year history. The carrier flew 4.4 million…