IOS remote - "up next" is empty when player stopped

[whatdoineed2do]

If the player is stopped and we connect to the server with IOS 13 remote app, the "up next" is empty even if we have items in the play queue.

The IOS remote app only becomes aware of the queued items when we start play or are in paused state.

A simple fix can be:

--- a/src/httpd_dacp.c
+++ b/src/httpd_dacp.c
@@ -1751,6 +1751,18 @@ dacp_reply_playqueuecontents(struct httpd_request *hreq)
 
       while ((db_queue_enum_fetch(&qp, &queue_item) == 0) && (queue_item.id > 0) && (count < span))
        {
+         // if we're not playing, the "up next" is empty even if the queue table is not empty
+         if (status.status == PLAY_STOPPED)
+           {
+             if (playqueuecontents_add_queue_item(songlist, &queue_item, count, status.plid) < 0)
+               {
+                 db_queue_enum_end(&qp);
+                 goto error;
+               }
+             ++count;
+             continue;
+           }
+
          if (status.item_id == 0 || status.item_id == queue_item.id)
            {
              count = 1