Valkyr-JS

Thanks for adding the `PerformerDetailsPanel` components, they're working nicely. Could I request the `PerformerCard` and `TagCard` components as well, if that's okay? Thanks

Also, for some reason `play_history` and `last_played_at` are not available on a plugin GQL query. Here's a snapshot of my console log if it helps. Hopefully this is the best...

Sorry to keep asking for stuff! It would also be useful to have a `defaultSettings` option in the plugin yaml so that we can set defaults there. This would be...