Hong Kong Airlines, the hometown rival of Cathay Pacific Airways, is seeking to cut the pay of its more than 1,200 cabin crew by 30 per cent to “secure and safeguard” jobs and its very survival during the Covid-19 pandemic.The cash-strapped carrier, backed by Chinese conglomerate HNA Group, said on Friday that it wanted to lower salaries for four months, while the number of crew required to work would be slashed by half with “fewer than 10 aircraft” flying during the health crisis.The city’s…