refactor: use custom imap client

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

lib/Client/Protocol/Response/ResponseInterface.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KTXM\ProviderImap\Client\Protocol\Response;
+
+interface ResponseInterface
+{
+    public function raw(): string;
+}