Show Less button overlaps and flies in the middle of the screen blocking content


This is just a suggestion, Just the way the `Show More` button lies at the bottom of the list of repositories, clicking it should have a similar behavior where the `Show Less` button too should scroll down to the bottom of the list rather than hovering in the middle.

复现仓库列表中 Show More 和 Show Less 的行为，然后检查控制这些按钮的页面标记和 CSS。完成的标准是 Show Less 像 Show More 一样出现在列表底部，并且不再与内容重叠或阻挡内容。

由索引模型根据 Issue 内容生成。