h-gtk: Fix views not updating after a download completes.

While ideally we want episode widget to determine their states
themselves and avoid refreshing the whole view, currently there
is no infrastructure for that which resulted in views not being
updated their EpisodeWidgets stuck in the InProggress state.

hammond-gtk/src/manager.rs

@@ -90,6 +90,7 @@ pub fn add(id: i32, directory: String, sender: Sender<Action>) -> Result<(), Err
     DLPOOL.spawn(move || {
         if let Ok(episode) = dbqueries::get_episode_from_rowid(id) {
             let id = episode.rowid();
+            let pid = episode.podcast_id();
 
             if let Err(err) = get_episode(&mut episode.into(), directory.as_str(), Some(prog)) {
                 error!("Error while trying to download an episode");
@@ -106,7 +107,10 @@ pub fn add(id: i32, directory: String, sender: Sender<Action>) -> Result<(), Err
             // }
 
             sender
-                .send(Action::RefreshEpisodesViewBGR)
+                .send(Action::RefreshWidgetIfSame(pid))
+                .expect("Action channel blew up.");
+            sender
+                .send(Action::RefreshEpisodesView)
                 .expect("Action channel blew up.");
         }
     });