[feat] Need to add Preview

[yangwenmai]

Describe the problem

希望可以针对复制的内容预览。（特别是代码、链接、图片）

Describe the solution you'd like

可以右键有功能键预览，也可以有一个小按钮

Alternatives considered

No response

Additional context

No response

[ayangweb]

Duplicate of #71