add shipping rules

app/Repositories/Core/User/Basket.php

@@ -7,12 +7,14 @@ class Basket
     public static function first($key)
     {
         $data = self::get($key);
+
         return array_shift($data);
     }
 
     public static function last($key)
     {
         $data = self::get($key);
+
         return $data ? array_pop($data) : false;
     }
 
@@ -33,6 +35,7 @@ class Basket
             array_push($data, $value);
             self::set($key, $data);
         }
+
         return count($data);
     }
 
@@ -42,6 +45,7 @@ class Basket
         if (($index = array_search($value, $data)) !== false) {
             unset($data[$index]);
         }
+
         return self::set($key, $data);
     }