Trad: Update translation files

htdocs/langs/nb_NO/exports.lang

htdocs/langs/nb_NO/install.lang

htdocs/langs/nb_NO/main.lang

htdocs/langs/nb_NO/other.lang

htdocs/langs/nb_NO/withdrawals.lang

htdocs/langs/nl_BE/exports.lang

htdocs/langs/nl_BE/install.lang

htdocs/langs/nl_BE/main.lang

htdocs/langs/nl_BE/other.lang

htdocs/langs/nl_BE/withdrawals.lang

htdocs/langs/nl_NL/exports.lang

htdocs/langs/nl_NL/install.lang

htdocs/langs/nl_NL/main.lang

htdocs/langs/nl_NL/other.lang

htdocs/langs/nl_NL/withdrawals.lang

htdocs/langs/pl_PL/exports.lang

htdocs/langs/pl_PL/install.lang

htdocs/langs/pl_PL/main.lang

htdocs/langs/pl_PL/other.lang

htdocs/langs/pl_PL/withdrawals.lang