Added missing share method

Author: vedmant

src/Facades/Shortcodes.php

@@ -7,8 +7,8 @@
 use Vedmant\LaravelShortcodes\ShortcodesManager;
 
 /**
- * @method static mixed global(string $key, $value = null, $default = null)
- * @method static mixed|ShortcodesManager shared($key = null, $value = null, $default = null)
+ * @method static ShortcodesManager share(string $key, $value)
+ * @method static mixed shared($key = null, $value = null)
  * @method static ShortcodesManager add($name, $callable = null)
  * @method static ShortcodesManager remove($name)
  * @method static array registered()

src/Shortcode.php

@@ -71,7 +71,7 @@ public function atts(): array
      */
     public function shared($key = null, $defatul = null)
     {
-        return $this->manager->shared($key, null, $defatul);
+        return $this->manager->shared($key, $defatul);
     }
 
     /**

src/ShortcodesManager.php

@@ -44,26 +44,33 @@ public function __construct(Application $app, array $config)
     }
 
     /**
-     * Set / get shared variable
+     * Share attribute
      *
      * @param string $key
      * @param mixed  $value
+     * @return ShortcodesManager
+     */
+    public function share($key, $value)
+    {
+        $this->shared[$key] = $value;
+
+        return $this;
+    }
+
+    /**
+     * Set / get shared variable
+     *
+     * @param string $key
      * @param null   $default
-     * @return mixed|ShortcodesManager
+     * @return mixed
      */
-    public function shared($key = null, $value = null, $default = null)
+    public function shared($key = null, $default = null)
     {
         if ($key === null) {
             return $this->shared;
         }
 
-        if ($value === null) {
-            return array_get($this->shared, $key, $default);
-        }
-
-        $this->shared[$key] = $value;
-
-        return $this;
+        return array_get($this->shared, $key, $default);
     }
 
     /**