Part pricing cleanup (#8340)

* Part pricing cleanup

- Improve / tweak rendering for PurchaseHistoryPanel

* Adjust playwright tests

src/frontend/src/pages/part/pricing/PurchaseHistoryPanel.tsx

@@ -52,12 +52,15 @@ export default function PurchaseHistoryPanel({
             currency: record.purchase_price_currency
           });
 
-          let units = record.supplier_part_detail?.pack_quantity;
+          let packQuatity = record.supplier_part_detail?.pack_quantity;
+          let hasPackQuantity =
+            !!packQuatity &&
+            record.supplier_part_detail?.pack_quantity_native != 1;
 
           return (
             <Group justify="space-between" gap="xs">
               <Text>{price}</Text>
-              {units && <Text size="xs">[{units}]</Text>}
+              {hasPackQuantity && <Text size="xs">[{packQuatity}]</Text>}
             </Group>
           );
         }
@@ -74,11 +77,12 @@ export default function PurchaseHistoryPanel({
           });
 
           let units = record.part_detail?.units;
+          let hasUnits = !!units && units !== 1;
 
           return (
             <Group justify="space-between" gap="xs">
               <Text>{price}</Text>
-              {units && <Text size="xs">[{units}]</Text>}
+              {hasUnits && <Text size="xs">[{units}]</Text>}
             </Group>
           );
         }

src/frontend/tests/pages/pui_stock.spec.ts

@@ -94,7 +94,10 @@ test('Stock - Serial Numbers', async ({ page }) => {
 
   // Now, with correct quantity
   await page.getByLabel('number-field-quantity').fill('51');
+  await page.waitForTimeout(250);
   await page.getByRole('button', { name: 'Submit' }).click();
+  await page.waitForTimeout(250);
+
   await page
     .getByText(
       /The following serial numbers already exist or are invalid : 200,201,202,203,204/