Add flag in checkForSystemdUnit()

install.sh

@@ -453,12 +453,13 @@ getDotfiles() {
 }
 
 checkForSystemdUnit() {
-    trap 'systemctl stop ${2}' INT
+    trap 'systemctl stop ${2}; forceExit=true' INT
     systemctl is-active --quiet ${2}
     [ $? -eq 0 ] && return
+    forceExit=false
     calcWidthAndRun "whiptail --infobox \"Waiting for the ${1} to finish.\" 7 WIDTH"
     systemctl is-active --quiet ${2}
-    while [ $? -ne 0 ]; do
+    while [ $? -ne 0 ] && [ $forceExit = false ]; do
         sleep 1
         systemctl is-active --quiet ${2}
     done