Housekeeping

- Update README
- Run shellcheck on .sh files
- Add helper scripts
- Remove eirene vm variant
- Add post-install checklist

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/user/configs/gui/cliphist/scripts/delete.sh

@@ -7,7 +7,7 @@ handle() {
   cliphist delete <<< "$1"
 }
 
-case $ROFI_RETV in
+case ${ROFI_RETV} in
   0) list ;;
   1) handle "$@" && list ;;
 esac