Updated to 0.18.1-rc.1 - Lemmy.world

After some trial and error lemmy.world has been updated to a 0.18.0/0.18.1-rc1 hybrid. Should take care of some issues like the infinite scrolling on the frontpage, issues with content-display when you have multiple tabs open (since no more websockets) and issues in Jerboa.

Also new: emoji's 😱

Good job @ruud !