style: add missing override annotation

random_file_picker/tui.py

@@ -9,6 +9,7 @@ Here's an example usage:
 
 import pathlib
 import random
+from typing import override
 
 import typed_argparse as tap
 from textual.app import App, ComposeResult
@@ -70,6 +71,7 @@ class MenuApp(App[None]):
         self.current_index: int = 0
         self.current_file: pathlib.Path | None = None
 
+    @override
     def compose(self) -> ComposeResult:
         yield Header()
         yield Label("Loading files...", id="status")