- add little icons to tag items
- smaller tags
- make tag with less counts less obvious

Extracted the site stats table and external link rank sections into separate partials (stats-table.html and external-link-rank.html) for better modularity and maintainability. Updated stats.html to use these new components and improved section structure.

Introduced a new partial 'publish-time-chart.html' to visualize the distribution of article publish times across different time segments.

Use `position: absolute` for `<figcaption>`, not affecting the container's width. Also rewrite `<figure>` `<figcaption>` style.