fix: change variable that hold dotfiles directory

installer/fish.sh

@@ -1,11 +1,10 @@
 #!/bin/sh -e
 
-if [[ ! -x "$(command -v sjb-orgmode-installer)" ]]; then
-    echo "Error: sjb config script are not installed, run sjb-install.sh" >&2
-    exit 1
+if [[ ! -x "$(command  -v fish)" ]]; then
+    paru -Sy --needed --noconfirm fish fisher
 fi
 
-${DOTFILE_DIR}/sync-config config/fish
+${DOTFILES_DIR}/sync-config config/fish
 
 if [[ -x /usr/bin/fisher ]]; then
     fisher install franciscolourenco/done