Add static variable for MiddlewareUniversalName. (archtechx#581)

* Added middlewareUniversalName static variable to extends and customize the UniversalRoutes class

* change the variable name and undo the code style

src/Features/UniversalRoutes.php

@@ -13,6 +13,8 @@
 
 class UniversalRoutes implements Feature
 {
+    public static $middlewareGroup = 'universal';
+
     public static $identificationMiddlewares = [
         Middleware\InitializeTenancyByDomain::class,
         Middleware\InitializeTenancyBySubdomain::class,
@@ -22,7 +24,7 @@ public function bootstrap(Tenancy $tenancy): void
     {
         foreach (static::$identificationMiddlewares as $middleware) {
             $middleware::$onFail = function ($exception, $request, $next) {
-                if (static::routeHasMiddleware($request->route(), 'universal')) {
+                if (static::routeHasMiddleware($request->route(), static::$middlewareGroup)) {
                     return $next($request);
                 }