Rename admin-check command for clarity

Updated the artisan command from `command:isAdmin` to `user:who-is-admin` to improve readability and better match naming conventions. Adjusted README documentation and command signature accordingly.

Author: mvd81

README.md

@@ -91,7 +91,7 @@ You can use this Blade directive
 ## Who is an admin?
 You can enter an artisan command to see how is an admin.
 ```bash
-php artisan command:isAdmin
+php artisan user:who-is-admin
 ```
 
 ## Uninstall

src/Console/Commands/IsAdminList.php

@@ -7,12 +7,13 @@
 use Illuminate\Support\Facades\Schema;
 
 class IsAdminList extends Command{
+
     /**
      * The name and signature of the console command.
      *
      * @var string
      */
-    protected $signature = 'command:isAdmin';
+    protected $signature = 'user:who-is-admin';
 
     /**
      * The console command description.