Fix StyleCI issues

Author: sibprogrammer

src/Api/Client.php

@@ -221,8 +221,9 @@ private function _performHttpRequest($request)
      * @param array $requests
      * @param int $mode
      *
-     * @return array
      * @throws Client\Exception
+     *
+     * @return array
      */
     public function multiRequest(array $requests, $mode = self::RESPONSE_SHORT): array
     {

src/Api/Operator/PhpHandler.php

@@ -22,7 +22,7 @@ public function get($field = null, $value = null): Info
         $filterTag = $getTag->addChild('filter');
 
         if (!is_null($field)) {
-            $filterTag->addChild($field, (string)$value);
+            $filterTag->addChild($field, (string) $value);
         }
 
         $response = $this->_client->request($packet, Client::RESPONSE_FULL);

src/Api/Operator/SiteAlias.php

@@ -22,7 +22,7 @@ public function create(array $properties, array $preferences = [])
             $prefs = $info->addChild('pref');
 
             foreach ($preferences as $key => $value) {
-                $prefs->addChild($key, is_bool($value) ? ($value ? "1" : "0") : $value);
+                $prefs->addChild($key, is_bool($value) ? ($value ? '1' : '0') : $value);
             }
         }
 

src/Api/Struct/PhpHandler/Info.php

@@ -4,7 +4,6 @@
 namespace PleskX\Api\Struct\PhpHandler;
 
 use PleskX\Api\Struct;
-use PleskX\Api\XmlResponse;
 
 class Info extends Struct
 {