Enhance Proxmox views with improved loading states and UI updates

- Updated serverplaceholder.blade.php to enhance loading skeletons for server details.
- Added navigation breadcrumbs to statistics, subdomain, and system views for better user experience.
- Improved loading indicators for CPU, network, memory, and disk charts in statistics.blade.php.
- Refined storage.blade.php layout with section dividers and improved drive display, including bus type indicators and quota usage.
- Enhanced VNC and Xterm popups with a new header design, loading animations, and reconnect functionality.
- Added error handling for VNC and Xterm connections to inform users when unable to connect.

extensions/Servers/Proxmox/Admin/Resources/NodeResource.php

@@ -31,16 +31,21 @@ class NodeResource extends Resource
         $proxmox = new Proxmox;
 
         $nodes = once(function () use ($proxmox) {
-            $nodes = $proxmox->request('/cluster/resources', data: [
-                'type' => 'node',
-            ])->json()['data'] ?? [];
+            try {
+                $nodes = $proxmox->request('/cluster/resources', data: [
+                    'type' => 'node',
+                ])->json()['data'] ?? [];
 
-            return collect($nodes)->map(function ($node) {
-                return [
-                    'label' => $node['node'],
-                    'value' => $node['node'],
-                ];
-            })->pluck('label', 'value');
+                return collect($nodes)->map(function ($node) {
+                    return [
+                        'label' => $node['node'],
+                        'value' => $node['node'],
+                    ];
+                })->pluck('label', 'value');
+            } catch (\Throwable $e) {
+                \Log::error('Failed to fetch Proxmox nodes: ' . $e->getMessage());
+                return collect();
+            }
         });
 
         return $form