fix: correct node type check in empty state conditions

The dashboard and storage pages incorrectly filtered nodes by type === 'pve',
but the backend provides nodes with type === 'node'. This caused the 'No Proxmox
VE nodes configured' message to appear even when nodes were present.

- Dashboard.tsx: Simplified check to props.nodes.length === 0
- Storage.tsx: Changed filter to type === 'node'

Fixes #1192

frontend-modern/src/components/Dashboard/Dashboard.tsx

@@ -939,7 +939,7 @@ export function Dashboard(props: DashboardProps) {
         when={
           connected() &&
           initialDataReceived() &&
-          props.nodes.filter((n) => n.type === 'pve').length === 0 &&
+          props.nodes.length === 0 &&
           props.vms.length === 0 &&
           props.containers.length === 0
         }

frontend-modern/src/components/Storage/Storage.tsx

@@ -733,7 +733,7 @@ const Storage: Component = () => {
         when={
           connected() &&
           initialDataReceived() &&
-          (state.nodes || []).filter((n) => n.type === 'pve').length === 0 &&
+          (state.nodes || []).filter((n) => n.type === 'node').length === 0 &&
           sortedStorage().length === 0 &&
           searchTerm().trim() === ''
         }