add a chatbox example

[Haofei]

[stackotter]

This looks pretty awesome! Thanks for the PR 🙏

I’m away until the 11th of July. I’ll check out the example for myself (across a few different platforms) and review the code once I get back.

Just from a quick look through the code, I’d suggest using a NavigationSplitView to make the sidebar (so that it’s resizable and adapts to mobile). Also, you can use $viewModel.blah to get a binding to a property of a state variable (instead of manually constructing bindings). I haven’t looked too closely at the rest of the code though cause I’m just on my phone.