Japan’s Prime Minister Yoshihide Suga sounded an optimistic tone about lifting Japan’s state of emergency when it expires at the end of this month, saying the Covid-19 situation in the country was improving.“The situation has certainly taken a turn for the better,” Suga told reporters in Washington a day after attending the first in-person meeting of the leaders of Japan, the US, Australia and India.Citing the fact that the number of new cases in Japan had dropped to about 3,000 a day from…