Spotify's API throws an intermittent 404 on "Add Items to Playlist" requests and I've noticed that their documentation primarily suggests adding the items ids to the body, however, when using the "se.michaelthelin.spotify.requests.data.playlists.AddItemsToPlaylistRequest" (7.0.0) I see that item ids are added to the query string instead. Could this be the problem? Using the query string is probably less optimal... so I wonder if maybe using the body for the item ids would make the 404 go away...