cubicweb-vcreview #3705655 Don't reload page when cliecking "mark as done" on task [done]

When one has worked on a bunch of tasks, and has to mark them as done, this process is very long since the page reloads before you can clic on the next task. You can't even "hack" round this because you can't middle clic to open them in new tabs.

Making that button an ajax callback would be nice (with the css change to make it green)

done in<not specified>
load left0.000
closed by<not specified>