Add link column to PO LineItem table (#4500)

* add link column to PO LineItem table

* fix JS styling

InvenTree/templates/js/translated/order.js

@@ -2462,6 +2462,18 @@ function loadPurchaseOrderLineItemTable(table, options={}) {
                     }
                 },
             },
+            {
+                sortable: false,
+                field: 'supplier_part_detail.link',
+                title: '{% trans "Link" %}',
+                formatter: function(value, row, index, field) {
+                    if (value) {
+                        return renderLink(value, value);
+                    } else {
+                        return '';
+                    }
+                },
+            },
             {
                 sortable: true,
                 sortName: 'MPN',