Fix section hiding

We were suppressing hiding when section contained previous track.

Now, when all are played, we hide.

app/config.py

@@ -93,6 +93,7 @@ class Config(object):
     PREVIEW_BACK_MS = 5000
     PREVIEW_END_BUFFER_MS = 1000
     REPLACE_FILES_DEFAULT_SOURCE = "/home/kae/music/Singles/tmp"
+    RESIZE_ROW_CHUNK_SIZE = 40
     RETURN_KEY_DEBOUNCE_MS = 1000
     ROOT = os.environ.get("ROOT") or "/home/kae/music"
     ROW_PADDING = 4

app/playlistmodel.py

@@ -124,7 +124,6 @@ class PlaylistModel(QAbstractTableModel):
             for ts in [
                 track_sequence.next,
                 track_sequence.current,
-                track_sequence.previous,
             ]:
                 if ts and ts.row_number == row_number and ts.playlist_id == self.playlist_id:
                     break

app/playlists.py

@@ -941,7 +941,7 @@ class PlaylistTab(QTableView):
                 QTimer.singleShot(0, lambda: resize_row(row, count))
 
         # Start resizing from row 0, 10 rows at a time
-        QTimer.singleShot(0, lambda: resize_row(0, 10))
+        QTimer.singleShot(0, lambda: resize_row(0, Config.RESIZE_ROW_CHUNK_SIZE))
 
     def scroll_to_top(self, row_number: int) -> None:
         """