proxmox(overview): label the workloads identifier column ID, not Info

On a pure-Proxmox surface the polymorphic 'info' column always renders
the VMID; the generic 'Info' header was unified-model vocabulary leaking
into a platform page (v5 called it 'ID'). Use the existing
columnLabelOverrides hook. Flagged by the Proxmox overview parity audit.

frontend-modern/src/features/proxmox/ProxmoxPageSurface.tsx

@@ -263,6 +263,9 @@ function ProxmoxOverview(props: ProxmoxOverviewProps) {
     useWorkloads: true,
     forcedPlatform: PROXMOX_PLATFORM_FILTER,
     suppressPlatformFilter: true,
+    // The polymorphic 'info' column always holds the VMID on a pure-Proxmox
+    // surface, so label it with the platform vocabulary instead of 'Info'.
+    columnLabelOverrides: { info: 'ID' },
     statusModeStorageScope: PROXMOX_WORKLOAD_STATUS_STORAGE_SCOPE,
     compactGroupHeaders: true,
     groupNodeDrawerMode: 'disabled',