Allow hiding IP addresses

This commit introduces a new feature where users can disable the collection and display of IP addresses. It's hardcoded in the .env config file for security reasons, and demo mode ignores this setting, because it already hides IPs by default.

app/Http/Controllers/ApplicationController.php

@@ -26,6 +26,7 @@ use App\Exceptions\ApplicationNotFoundException;
 use App\Exceptions\IncompleteApplicationException;
 use App\Exceptions\UnavailableApplicationException;
 use App\Exceptions\VacancyNotFoundException;
+use App\Facades\IP;
 use App\Services\ApplicationService;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;