move application actions into popover
move application actions into popover

Closes #1115
It looks a bit cleaner and puts less emphasis on the accept/decline actions

yunity/foodsaving-frontend,yunity/karrot-frontend,yunity/karrot-frontend,yunity/karrot-frontend,yunity/foodsaving-frontend,yunity/foodsaving-frontend,yunity/karrot-frontend,yunity/foodsaving-frontend