Add waitBox in updateMirrors()

install.sh

@@ -374,6 +374,7 @@ updateMirrors() {
     calcHeightAndRun "whiptail --msgbox \"Now, we will update the mirror list by taking the most recently synchronized HTTPS mirrors sorted by download rate.\" HEIGHT 65"
     whiptail --yesno "Would you like to choose your closest countries to narrow the search?" 0 0
     if [ $? -eq 0 ]; then
+        printWaitBox
         systemctl stop reflector.service
         cp /etc/pacman.d/mirrorlist /etc/pacman.d/mirrorlist.backup
         curl -o /etc/pacman.d/mirrorlist.pacnew https://archlinux.org/mirrorlist/all/ 2>&1 | debug