建议加入侧边栏的 Tag 属性和样式

[duxphp]

Is your feature request related to a problem? Please describe.

需要侧边栏的每个条目可以自定义不同的标签。

Describe the solution you'd like

可以给侧边栏的每个条目加入一个圆角的标签，可以定义条目的标签内容，可以显示 开发中、已弃用等不同的状态，并且可以使用不同的颜色。

Describe alternatives you've considered

No response

Additional context

No response

Validations

• [X] Read the docs.
• [X] Read the Contributing Guidelines.
• [X] Check that there isn't already an issue that asks for the same feature to avoid creating a duplicate.

[sanyuan0704]

很好的建议，可以支持