Bugfix(PricingRules): Prevent Error when adding a new Pricing Rule wi…

…th a name that exists

When you create a Pricing Rule with an name that already exists the backend interface is not loading the pricing rules anymore because it inserts a row with "null" values.

The reason is because the create() call is successfully but at the update() call you get an errror because a pricing Rule with that name already exists. Solution -> wrap it into a transaction

src/PricingManager/Rule/Dao.php

@@ -67,7 +67,7 @@ public function getById(int $id): void
     public function create(): void
     {
         $this->db->insert(self::TABLE_NAME, []);
-        $this->model->setId((int)$this->db->lastInsertId());
+        $this->model->setId((int) $this->db->lastInsertId());
     }
 
     /**