style: apply ruff auto-fixes

TUI/modalscreen/selection_modal.py

@@ -1,8 +1,8 @@
 from textual.app import ComposeResult
 from textual.screen import ModalScreen
 from textual.containers import Container, ScrollableContainer
-from textual.widgets import Static, Button, Label
-from typing import List, Callable
+from textual.widgets import Static, Button
+from typing import List
 
 class SelectionModal(ModalScreen[str]):
     """A modal for selecting a type from a list of strings."""