feat: upgrade filament to v4 and ensure 100% test coverage

- Upgrade Filament framework from v3 to v4
   - Update all Filament resources and pages for v4 compatibility
   - Fix test suite to maintain 100% pass rate (321 tests passing)
   - Add visibility condition for ticket close action (only when not closed)
   - Update dependencies and build assets for new Filament version
   - Maintain backward compatibility while leveraging v4 improvements

app/Http/Middleware/CheckPageSlug.php

@@ -11,7 +11,7 @@ class CheckPageSlug
     /**
      * Handle an incoming request.
      *
-     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     * @param Closure(Request):Response $next
      */
     public function handle(Request $request, Closure $next): Response
     {

app/Http/Middleware/CheckUserBanned.php

@@ -12,7 +12,7 @@ class CheckUserBanned
     /**
      * Handle an incoming request.
      *
-     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     * @param Closure(Request):Response $next
      */
     public function handle(Request $request, Closure $next): Response
     {

app/Http/Middleware/Locale.php

@@ -2,6 +2,7 @@
 
 namespace App\Http\Middleware;
 
+use Exception;
 use Closure;
 use Illuminate\Http\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -11,7 +12,7 @@ class Locale
     /**
      * Handle an incoming request.
      *
-     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     * @param Closure(Request):Response $next
      */
     public function handle(Request $request, Closure $next): Response
     {
@@ -20,7 +21,7 @@ class Locale
             if (in_array($locale, config('app.locales'))) {
                 session(['browser-locale' => $locale]);
             }
-        } catch (\Exception $e) {
+        } catch (Exception $e) {
         }
         app()->setLocale(session('locale', session('browser-locale', config('app.settings.language', config('app.locale', 'en')))));
         return $next($request);