Introduce more visual navigations

E.g. this is a good start, but one clickable visualisation would be better.
https://forrt.org/citation-politics/toolkit/
This would also be good for clusters.

An external example: https://igor-biodgps.github.io/ARIADNE/graph/graph.html

首先查看 FORRT 网站和链接的两个可视化示例，以了解所需的导航风格。明确哪些页面和集群视图属于范围，哪些现有入口应由它们替换或扩展，以及可点击的可视化必须支持哪些功能，然后再估算完成情况。

由索引模型根据 Issue 内容生成。