Beloved internet sensation Kabosu, the dog behind the popular “doge” meme, has sadly passed away at the age of 18. The Japanese shiba inu had been battling both leukaemia and liver disease. Owner Atsuko Sato announced the sad news on Instagram, writing, “To all of you who loved Kabosu, on the morning of May 24th, Kabosu crossed the rainbow bridge. Thank you all so much for your support over the…