Experimenting with custom elements

[mantoni]

Hi there 👋

I'm using Choo for a large app and I'm currently exploring how I can put custom elements to use. I have some nicely working hacks that I've put into a repo to play around with (tested with Safari and Chrome):

https://github.com/mantoni/choo-custom-elements

Some thoughts / questions:

• Can we make it somewhat less hacky (e.g. the onrender setter)?
• Is there an interest in finding an "official" way to do this? 👮☝️😄
• Would it make sense to create a base class or a choo extension to make this easy?