Enable play controls after fade command

app/musicmuster.py

@@ -251,6 +251,7 @@ class Window(QMainWindow, Ui_MainWindow):
         if not self.current_track:
             return
 
+        self.enable_play_next_controls()
         self.previous_track = self.current_track
         self.previous_track_position = self.music.fade()
 

app/playlists.py

@@ -346,7 +346,7 @@ class Playlist(QTableWidget):
 
         current_row = self._meta_get_next()
         self._meta_set_current(current_row)
-        self.played_tracks.append(current_row)
+        self.played_tracks.append(self._get_row_id(current_row))
 
         # Scroll to put current track in centre
         scroll_to = self.item(current_row, self.COL_INDEX)