Disallow going above the initial directory

lazy_player/__init__.py

@@ -491,9 +491,6 @@ class MainWindow(Gtk.ApplicationWindow):
     def _populate_file_list(self) -> None:
         items: list[FileItem] = []
 
-        # Add parent directory
-        items.append(FileItem("..", FileType.DIRECTORY, Path("..").resolve()))
-
         for entry in os.scandir():
             if entry.name.startswith("."):
                 continue