Polymorph Pages

Polymorph Pages adds pagination to Polymorph's recipe selection screen.

Features:
- Displays up to 5 recipes per page by default, configurable from 1 to 12.
- Provides left and right arrows with circular navigation between pages.
- Supports mouse wheel page switching without changing the selected recipe.
- Keeps the selected recipe highlighted and avoids ghost click areas on the last page.

Polymorph Pages 为 Polymorph 的配方选择界面增加分页功能，默认每页显示 5 个配方，可在客户端配置中调整为 1 到 12 个。支持左右循环翻页、滚轮翻页，并保留原有的配方高亮、点击选择和自动关闭行为。