Add visual feedback when clicking the Follow Log button

When hovering over the Follow Log button in the job log, there’s no way of seeing if following is currently active especially at the beginning of a build when there’s no screenful of log yet. So when you click the button, nothing actually changes, and you need to move the mouse cursor away to see the green button. I’d propose making also the hover button green when following is active.

When you enable the follow, the ring in the upper right corner of the log view becomes green.

Yes, but you can’t see it unless you move the mouse since the hover overlays the ring. That’s the whole point of my request.