Add support for advanced menu items

[kneal]

I'm not sure if it's possible but it would be really cool if we could have access to a more advanced menu item setup. The existing title and tooltip works for the basics but I'm really looking for something more advanced.

Like maybe the title string can accept more complex content like rendering some form of HTML. Or maybe introduce a new menu item option that allows for more customization. I'm sure there are limitations here from the OS but something more than a string would be really useful.

Totally understand limitations or being out of scope. I haven't looked too much at the webview setup. Maybe that's the answer in this scenario.