Feature Request: Spotify block

[reginabally]

I love everything, but I miss Spotify and Pinterest blocks on the app, I need to add those on desktop.

Requested in a 4-star app review.

[fluiddot]

The Spotify block is a variant of the Embed block and is actually available but not included in the block picker. It can be added by either:

1. Via the slash inserter by typing /spotify.
2. Adding an Embed block and setting a Spotify URL.

However, I'd like to note that the inline preview is not available yet, which could be tackled in the short term.

[reginabally]

Thanks, @fluiddot! I've updated the app review reply.

[mchowning]

I'll leave this open as a request for inline preview of the spotify embed. Any opposition to me updating the issue title to reflect that @reginabally ?

[fluiddot]

I'd like to note that we already have an open issue (reference) related to enabling the inline preview for other providers, so I referenced this issue there too.