fix: show active watch filter in pane title

src/main.rs

@@ -1222,6 +1222,7 @@ impl App {
             let ViewSource::WatchLater(category) = &view.source else {
                 continue;
             };
+            view.title = format!(" {} · {} ", view.name, view.watch_filter.label());
             let selected = view.selection.selected();
             let selected_id = selected
                 .and_then(|row| view.videos.get(row))