refactor: improvement set value array nested

Author: csemazharul

src/Helpers/Arr.php

@@ -564,11 +564,7 @@ public static function set(&$array, $key, $value)
             return $array = $value;
         }
 
-        if (\is_array($key)) {
-            $keys = $key;
-        } else {
-            $keys = explode('.', $key);
-        }
+        $keys = \is_array($key) ? $key : explode('.', $key);
 
         foreach ($keys as $i => $key) {
             if (\count($keys) === 1) {