refactor: posix and solid script

#!/usr/bin/env sh

TARGET="${1:=${PWD}}"

if [ "${1}" = "" ]; then

    TARGET=${PWD}

else

    TARGET=${1}

fi

prettier --write --ignore-unknown --prose-wrap always ${TARGET} || \

if command -v prettier > /dev/null; then

    prettier --write --ignore-unknown --prose-wrap always ${TARGET}

elif command -v docker > /dev/null; then

    docker run -u $(id -u):$(id -g) -v "${TARGET}:${TARGET}" registry.gitlab.com/just-ci/images/prettier:latest prettier --write --ignore-unknown --prose-wrap always ${TARGET}

else

    echo "[!] prettier nor docker were found. Cannot run."

fi