First basic remodelling of request classes

app/Api/V1/Requests/BudgetLimitRequest.php

@@ -23,13 +23,15 @@ declare(strict_types=1);
 
 namespace FireflyIII\Api\V1\Requests;
 
+use Illuminate\Foundation\Http\FormRequest;
+
 /**
  * Class BudgetLimitRequest
  *
  * @codeCoverageIgnore
  * TODO AFTER 4.8,0: split this into two request classes.
  */
-class BudgetLimitRequest extends Request
+class BudgetLimitRequest extends FormRequest
 {
     /**
      * Authorize logged in users.