Use type index - never assume /movies URI

[timbl]

When I run https://oxfordhcc.github.io/solid-media/
i find it gets a stream of 403 (unauthorized) errors from things like

https://jackson.solidcommunity.net/movies/

It should not guess the URL of where the movies might be, but instead lead the user's profile, and then if they had a public type index load that and look in that.

It should also add an entry to this user's type index if it doesn't have one already from say MediaKraken.