fix(machines): Allow sorting by disks and storage (3.6 backport) (#5578)

- Added `total_storage` and `physical_disk_count` as valid fetch group keys
- Added `onClick` handlers to disks and storage column headers to update the sort key

Resolves [LP#2092299](https://bugs.launchpad.net/maas-ui/+bug/2092299)

src/app/machines/views/MachineList/MachineListTable/MachineListTable.tsx

@@ -340,8 +340,8 @@ export const MachineListTable = ({
         <TableHeader
           currentSort={currentSort}
           data-testid="disks-header"
-          // TODO: enable sorting by "physical_disk_count" when the API supports it:
-          // https://github.com/canonical/app-tribe/issues/1268
+          onClick={() => updateSort(FetchGroupKey.PhysicalDiskCount)}
+          sortKey={FetchGroupKey.PhysicalDiskCount}
         >
           {columnLabels[MachineColumns.DISKS]}
         </TableHeader>
@@ -355,8 +355,8 @@ export const MachineListTable = ({
         <TableHeader
           currentSort={currentSort}
           data-testid="storage-header"
-          // TODO: enable sorting by "storage" when the API supports it:
-          // https://github.com/canonical/app-tribe/issues/1268
+          onClick={() => updateSort(FetchGroupKey.TotalStorage)}
+          sortKey={FetchGroupKey.TotalStorage}
         >
           {columnLabels[MachineColumns.STORAGE]}
         </TableHeader>

src/app/store/machine/types/actions.ts

@@ -403,6 +403,7 @@ export enum FetchGroupKey {
   Ownerdata = "ownerdata",
   Parent = "parent",
   ParentId = "parent_id",
+  PhysicalDiskCount = "physical_disk_count",
   Podhints = "podhints",
   Pod = "pod",
   PodType = "pod_type",
@@ -430,6 +431,7 @@ export enum FetchGroupKey {
   SyncInterval = "sync_interval",
   SystemId = "system_id",
   Tags = "tags",
+  TotalStorage = "total_storage",
   Updated = "updated",
   Url = "url",
   Virtualmachine = "virtualmachine",