[PUI] Platform fixes (#8324)

* Add "IPN" column to build order allocated stock table

* Allow sorting and searching by IPN

* Handle allocations where allocated but required == 0

* Add "no info available" message to part scheduling

* Adjust PartSchedulingTable

* Icon fix

* Add "latest serial number" information to PartDetail page

* Cleanup code for serial-number placeholder in forms

* Logic fix for displaying non-unity pack quantity

* Fix description field on SupplierPart page

* Fix duplicate table column

src/frontend/src/tables/build/BuildAllocatedStockTable.tsx

@@ -97,6 +97,14 @@ export default function BuildAllocatedStockTable({
         switchable: false,
         render: (record: any) => PartColumn({ part: record.part_detail })
       },
+      {
+        accessor: 'part_detail.IPN',
+        ordering: 'IPN',
+        hidden: !showPartInfo,
+        title: t`IPN`,
+        sortable: true,
+        switchable: true
+      },
       {
         hidden: !showPartInfo,
         accessor: 'bom_reference',