Show spaces as small buttons at the top of an open collection#796

I think the whole concept of spaces is genius as it allows you to save stuff by category (work, home etc.). At work I also use it to group by most used links, references, projects etc.

However, having to always open the left sidebar (I like to always have it closed) is a barrier to me using the spaces. I suggest enabling a feature to have spaces shown at the top of an open space (kind of like the website tabs in Chrome). This way you could fast and easy swap between all of your spaces.