from config → dashboards
you will see a page with 2 tabs, one is dashboards and the other is resources.
Resources page shows a list of javascript modules for customized lovelace cards.
Now, in the new UI meeting, it is setting → dashboards.
there is no resources tab any more.
where do I add javascript modules?
I should probably turn on email notifications so I see these messages, I believe the inaccuracy has been addressed. I think it was around Advanced Mode needing to be enabled.