refactor: simplify NavbarManager by removing manual Filament resource registration and update navigation group for NavbarLinkResource

extensions/Others/NavbarManager/Admin/Resources/NavbarLinkResource.php

@@ -19,7 +19,7 @@ class NavbarLinkResource extends Resource
     
     protected static ?string $navigationLabel = 'Navbar Manager';
     
-    protected static ?string $navigationGroup = 'Content';
+    protected static ?string $navigationGroup = 'Extensions';
 
     public static function getAvailableRoutes(): array
     {

extensions/Others/NavbarManager/NavbarManager.php

@@ -5,11 +5,9 @@ namespace Paymenter\Extensions\Others\NavbarManager;
 use App\Classes\Extension\Extension;
 use Illuminate\Support\Facades\Artisan;
 use Illuminate\Support\Facades\Event;
-use Illuminate\Support\Facades\View;
 use Illuminate\Support\HtmlString;
 use Paymenter\Extensions\Others\NavbarManager\Admin\Resources\NavbarLinkResource;
 use Paymenter\Extensions\Others\NavbarManager\Models\NavbarLink;
-use Paymenter\Extensions\Others\NavbarManager\Helpers\DefaultRouteManager;
 
 class NavbarManager extends Extension
 {
@@ -69,17 +67,8 @@ class NavbarManager extends Extension
             return $this->getNavigationLinks('dashboard');
         });
 
-        // Register the Filament resource
-        try {
-            \Filament\Facades\Filament::serving(function () {
-                \Filament\Facades\Filament::getCurrentPanel()
-                    ->resources([
-                        NavbarLinkResource::class,
-                    ]);
-            });
-        } catch (\Exception $e) {
-            // Resource not yet available
-        }
+        // Note: Admin resources are automatically discovered by Paymenter's AdminPanelProvider
+        // from the Admin/Resources folder - no manual registration needed
     }
 
     private function getNavigationLinks($type)