Update League of Legends characters

Generally, Discord's interactions with League are awesome! They accurately show all the champions are playing as well as the different game modes. However, the newer champions like Yone, Viego, Gwen, Lillia, and now soon-to-be Akshan aren't getting new images and so its impossible to tell what people are playing when they are playing these new champions. It seems like an annoying little detail but I think it's really easy to fix and will improve QoL. Thanks.