Made it possible to validate servers.spec options when updating them via API. Migrated config:edit to use the API to reduce code duplication.

src/Libs/Exceptions/ValidationException.php

@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Libs\Exceptions;
+
+/**
+ * Class ValidationException
+ */
+class ValidationException extends RuntimeException
+{
+}