Too much negative space under 'host your own' button on the blog sidebar.

[zenhack]

On the side bar of https://sandstorm.io/news/, there is a 'Host your own' button. Historically, underneath that there was also a button to sign up on Oasis, which has been removed since Oasis doesn't exist anymore.

However, the space it occupied is still there, and it looks weird. We should do something about that.