feat(monitoring): add pulse

- Added a new gate called `viewPulse` in the `AuthServiceProvider` class.
- The gate allows only admin users to view the Pulse feature.

config/app.php

@@ -18,6 +18,8 @@ return [
 
     'name' => env('APP_NAME', 'Laravel'),
 
+    'login_route' => env('LOGIN_ROUTE_NAME', 'login'),
+
     /*
     |--------------------------------------------------------------------------
     | Application Environment