fix: Move imports to the top of the file

feat: Implement ConfirmGroup preference handling in confirm_ask

aider/io.py

@@ -18,13 +18,6 @@ from pygments.lexers import MarkdownLexer, guess_lexer_for_filename
 from pygments.token import Token
 from pygments.util import ClassNotFound
 from rich.console import Console
-
-
-@dataclass
-class ConfirmGroup:
-    preference: str = None
-
-
 from rich.style import Style as RichStyle
 from rich.text import Text
 
@@ -32,6 +25,11 @@ from .dump import dump  # noqa: F401
 from .utils import is_image_file
 
 
+@dataclass
+class ConfirmGroup:
+    preference: str = None
+
+
 class AutoCompleter(Completer):
     def __init__(
         self, root, rel_fnames, addable_rel_fnames, commands, encoding, abs_read_only_fnames=None