Reworked the More Options section.

It has already grown quite tall and it still needs to take on few more configuration options, so expanding it in place as it's done for all other sections doesn't work. The window gets too big and simply doesn't fit on a desktop.

Instead, it pushes everything up and out of the window and floods it with its own content. As I add more config options to the section, it will also expand the window down a bit if needed. All this should help keep all configuration within single window and also keep window's height in check.

Took me a while to converge to this solution, but it is a pretty decent way to structure it I think.