fix and improve lf preview

.config/lf/clean

@@ -1,3 +1,2 @@
 #!/usr/bin/env bash
 kitty +kitten icat --clear --transfer-mode file
-

.config/lf/preview

@@ -5,7 +5,7 @@ image() {
     h=$3
     x=$4
     y=$5
-    kitty +kitten icat --transfer-mode file --place "${w}x${h}@${x}x${y}" -- "$f" && exit 1
+    kitty +kitten icat --clear --stdin no --silent --transfer-mode memory --place "${w}x${h}@${x}x${y}" "$f" >/dev/tty && exit 1
     chafa "$f" -f symbols -s "$((w-2))x$h" && exit 1
     echo -e "\e[31mImage previewer not installed\e[0m"
     return 1