Make the member_count track joining/leaving users
Make the member_count track joining/leaving users

Roughsketch/discordrb,VxJasonxV/discordrb,meew0/discordrb,Roughsketch/discordrb,sarsntony/discordrb,megumisonoda/discordrb,VxJasonxV/discordrb,meew0/discordrb,megumisonoda/discordrb,sarsntony/discordrb