Consider moving Recently Pushed Branches elsewhere

Following #1106 and #906

How does this position look?

To achieve this, the element would have to be moved between the two elements and floated right:

select('.pagehead-actions').after(select('.js-socket-channel'));

But probably it has to be move inside and positioned absolutely in case the repo name or branch name are too long to fit in one line.

Alternatively there’s this position, that expands on hover:

[fregante]

The size won’t actually always fit that area, it depends on the branch name. Also I’m hoping to extend the search box to fill that blank spot. Edit: #1886

Now I’m thinking… why don’t we put it on the black header next to the notifications bell? There’s always a lot of space there and it would kinda look/act like a notification.

[fregante]

Finally done! You can also disable it now: recently-pushed-branches-enhancements