Set default of $value to null

Author: rojtjo

src/Inertia.php

@@ -6,7 +6,7 @@
 
 /**
  * @method static void setRootView($name)
- * @method static void share($key, $value)
+ * @method static void share($key, $value = null)
  * @method static array getShared($key = null)
  * @method static void version($version)
  * @method static int|string getVersion()