Content script UI options API reference is hard to follow

[aklinker1]

Describe the bug

Try to find the docs for the append option here: https://wxt.dev/api/reference/wxt/client/functions/createShadowRootUi.html

You can't lol. Well, you can, but people will give up before finding it.

We could duplicate the JSDoc between the three options, but then they'd get out of sync. Maybe that's worth it for ease of use. Here's where the types are located: https://github.com/wxt-dev/wxt/blob/a38e3c27330ab82f9c136191fc85b9b101516915/packages/wxt/src/client/content-scripts/ui/types.ts

Originally reported here: https://discord.com/channels/1212416027611365476/1296842665249472614/1342135208220299274

Reproduction

https://wxt.dev/api/reference/wxt/client/functions/createShadowRootUi.html

Steps to reproduce

N/A

System Info

N/A

Used Package Manager

npm

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