feat: Show download progress (#399)

while true

do

  if [ -f "$file" ]; then

    size=$(stat -c '%s' "$file" | numfmt --to=si --suffix=B)

    bytes=$(du -sb "$file" | cut -f1)

    if (( bytes > 1000 )); then

      size=$(echo "$bytes" | numfmt --to=si --suffix=B  | sed -r 's/([A-Z])/ \1/')

      echo "${body//(\[P\])/($size)}"> "$info"

    fi

  fi

  sleep 1

done