Added css cursur attribute for notification div.
Added css cursur attribute for notification div.

jwinzer/OpenSlides,OpenSlides/OpenSlides,jwinzer/OpenSlides,boehlke/OpenSlides,tsiegleauq/OpenSlides,FinnStutzenstein/OpenSlides,emanuelschuetze/OpenSlides,FinnStutzenstein/OpenSlides,tsiegleauq/OpenSlides,normanjaeckel/OpenSlides,jwinzer/OpenSlides,emanuelschuetze/OpenSlides,boehlke/OpenSlides,CatoTH/OpenSlides,emanuelschuetze/OpenSlides,boehlke/OpenSlides,normanjaeckel/OpenSlides,ostcar/OpenSlides,jwinzer/OpenSlides,FinnStutzenstein/OpenSlides,OpenSlides/OpenSlides,emanuelschuetze/OpenSlides,ostcar/OpenSlides,rolandgeider/OpenSlides,ostcar/OpenSlides,CatoTH/OpenSlides,normanjaeckel/OpenSlides,boehlke/OpenSlides,tsiegleauq/OpenSlides,CatoTH/OpenSlides,CatoTH/OpenSlides,normanjaeckel/OpenSlides,rolandgeider/OpenSlides,FinnStutzenstein/OpenSlides,rolandgeider/OpenSlides,jwinzer/OpenSlides