fix: change variable that hold dotfiles directory

installer/jj.sh

@@ -4,12 +4,12 @@ if [[ ! -x "$(command  -v jj)" ]]; then
     paru -Sy --needed --noconfirm jj 
 fi
 
-${DOTFILE_DIR}/sync-config config/jj
+${DOTFILES_DIR}/sync-config config/jj
 
 JJ_CONFIG="${HOME}/.config/jj/conf.d/local.toml"
 
 mkdir -p "$(dirname ${JJ_CONFIG})"
-cp ${DOTFILE_DIR}/installer/templates/local.toml.tmpl ${JJ_CONFIG}
+cp ${DOTFILES_DIR}/installer/templates/local.toml.tmpl ${JJ_CONFIG}
 
 if [[ -n "${SJB_USER_NAME//[[:space:]]/}" ]]; then
   sed -i "s/NAME_PLACEHOLDER/${SJB_USER_NAME}/g" ${JJ_CONFIG}