[PUI] Small tweaks (#6868)

* Add "customer" detail to StockDetail page

* Hide completed tests field if not needed

* Fix "build" and "consumed_by" fields

* Fix icon

* Fix breadcrumb URLs

- Remove hard-coded strings
- Fix broken links

* Add serial icon

* More breadcrumb updates

* useMemo to simplify filters drawer

src/frontend/src/functions/icons.tsx

@@ -104,6 +104,8 @@ const icons = {
   variants: IconVersions,
   allocations: IconBookmarks,
   bom: IconListTree,
+  build: IconTools,
+  build_order: IconTools,
   builds: IconTools,
   used_in: IconStack2,
   manufacturers: IconBuildingFactory2,
@@ -170,6 +172,7 @@ const icons = {
   quantity: IconNumbers,
   progress: IconProgressCheck,
   reference: IconHash,
+  serial: IconHash,
   website: IconWorld,
   email: IconMail,
   phone: IconPhone,