镜像管理功能优化

1、提供新建镜像页面。
2、提供镜像广场页面。
3、新建调试任务页面、新建评测任务页面选择镜像时，分类显示镜像。
4、整理官方推荐的镜像列表。——刘敏（有哪些基础镜像，装了什么内容）
5、支持收藏镜像。

fix-323

通过测试，已经上线。遗留问题： #1891

Deleting a branch is permanent. It CANNOT be undone. Continue?

Dear OpenI User

Thank you for your continuous support to the Openl Qizhi Community AI Collaboration Platform. In order to protect your usage rights and ensure network security, we updated the Openl Qizhi Community AI Collaboration Platform Usage Agreement in January 2024. The updated agreement specifies that users are prohibited from using intranet penetration tools. After you click "Agree and continue", you can continue to use our services. Thank you for your cooperation and understanding.

For more agreement content, please refer to the《Openl Qizhi Community AI Collaboration Platform Usage Agreement》

#1814 镜像管理功能优化