preload-daemon: ue pgrep to prevent 100% CPU issues with ps aux

etc/preload-daemon

@@ -12,13 +12,13 @@ function error {
 #variable 1 is yad or xlunch
 #variable 2 is 'once', if you only want this to run once and exit.
 
-if [ "$(ps aux | grep preload-daemon | grep -v grep | wc -l)" -gt 2 ];then
-  echo "Another instance of preload-daemon is already running. Exiting now."
+if [ "$(pgrep preload-daemon | wc -l)" -gt 2 ];then
+  #echo "Another instance of preload-daemon is already running. Exiting now."
   exit 0
 fi
 
 #generate list of folders to preload, including special folders
-folders="$(cat ${DIRECTORY}/data/categories/structure | awk -F '|' '{print $2}' | sort | uniq | grep .)
+folders="$(cat "${DIRECTORY}/data/categories/structure" | awk -F '|' '{print $2}' | sort | uniq | grep .)
 Installed
 All Apps"
 #echo "$folders"