Visit https://extensions.gnome.org/extension/3826/click-to-close-overview/, or:
$ git clone /~https://github.com/l3nn4rt/click-to-close-overview.git
$ cd click-to-close-overview
$ makeVisit https://extensions.gnome.org/extension/3826/click-to-close-overview/, or:
$ git clone /~https://github.com/l3nn4rt/click-to-close-overview.git
$ cd click-to-close-overview
$ make