Cleanup styles of the bookmark list

[killthekitten]

Now it looks messy. The idea is to transform bookmarks title (in the list) to a link tag with color: black; and underline on :hover and remove "show".

[releu]

I think this block us not useful at all, but the most our users have a lot of bookmarks. I thought about removing posts from it and moving it to search box with special highlight.