feat: Update Proxmox extension with various improvements and bug fixes

- Change listStates method to accept nullable integer for limit parameter.
- Modify TechnitiumDns class to return structured error messages on failure.
- Enhance VNC and xterm popup routes with user authorization checks.
- Update backups view to improve loading states and add unique keys for dynamic elements.
- Refactor cloud-init view to ensure proper data binding and improve user experience.
- Add wire:key attributes to various elements in views for better Livewire performance.
- Improve error handling and user feedback in the firewall view.
- Update server overview and statistics views to handle potential null values gracefully.
- Add new migration files to extend database schema with user-set icons and notes for Proxmox nodes.

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

@@ -72,7 +72,7 @@ class LocationResource extends Resource
                                             ->required()
                                             ->numeric()
                                             ->unique(ignoreRecord: true, modifyRuleUsing: function (Unique $rule, Get $get, $record) {
-                                                return $rule->where('location_id', $get('id'));
+                                                return $rule->where('location_id', $get('../../id'));
                                             })
                                             ->placeholder('Enter the VM ID'),
                                     ])