CEC-3672 Add SUMS to car updates table (#280)

src/components/Table/HeaderSortable/index.jsx

@@ -1,12 +1,12 @@
-import React from "react";
-import PropTypes from "prop-types";
 import {
   Checkbox,
   TableCell,
   TableHead,
   TableRow,
-  TableSortLabel,
+  TableSortLabel
 } from "@material-ui/core";
+import PropTypes from "prop-types";
+import React from "react";
 
 const HeaderSortable = (props) => {
   const {
@@ -75,9 +75,9 @@ const HeaderSortable = (props) => {
             />
           </TableCell>
         )}
-        {columnData.map((column) => (
+        {columnData.map((column, index) => (
           <TableCell
-            key={column.id}
+            key={index}
             align={column.numeric ? "right" : "center"}
             padding={column.disablePadding ? "none" : "normal"}
             sortDirection={orderBy === column.id ? order : false}