[wishlist] "add tag to queue"

[whatSocks]

like

• see tag groups are on a tag page
• check top tracks for each item
• add to queue
• shuffle

[simonv3]

I think we'd need a way to find top tracks for a tag, which might mean implementing the same plays filter on the tag/:tag endpoint as exists on the /tracks/latest endpoint.

We'll also need a way to view tracks associated with a tag.