Potential fix for code scanning alert no. 3: Inefficient regular expression

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

sortable.js

@@ -104,9 +104,9 @@ function ts_resortTable(lnk, clid) {
 	sortfn = ts_sort_caseinsensitive;
 	if (itm.match(/^\d\d[\/\.-][a-zA-z][a-zA-Z][a-zA-Z][\/\.-]\d\d\d\d$/)) sortfn = ts_sort_date;
 	if (itm.match(/^\d\d[\/\.-]\d\d[\/\.-]\d\d\d{2}?$/)) sortfn = ts_sort_date;
-	if (itm.match(/^-?[£$€Û¢´]\d/)) sortfn = ts_sort_numeric;
+	if (itm.match(/^-?[£$€Û¢´]\d/)) sortfn = ts_sort_numeric;
 	// ignore stuff in () after the numbers.
-	if (itm.match(/^-?(\d+[,\.]?)+(E[-+][\d]+)?%?( \(.*\))?$/)) sortfn = ts_sort_numeric;
+	if (itm.match(/^-?\d+([,\.]\d+)*(E[-+][\d]+)?%?( \(.*\))?$/)) sortfn = ts_sort_numeric;
 	SORT_COLUMN_INDEX = column;
 	var firstRow = new Array();
 	var newRows = new Array();