Fix BasePage comments

Author: FeodorFitsner

sdk/python/packages/flet/src/flet/controls/base_page.py

@@ -303,15 +303,15 @@ def show_dialog(self, dialog: DialogControl) -> None:
         """
         Displays a dialog and manages its dismissal lifecycle.
 
-        This method adds the specified `DialogControl` to the active dialog stack
+        This method adds the specified `dialog` to the active dialog stack
         and renders it on the page. If the dialog is already open, an exception
         is raised.
         The `on_dismiss` handler of the dialog is temporarily wrapped to ensure the
         dialog is removed from the stack and its dismissal event is triggered
         appropriately.
 
         Args:
-            dialog (DialogControl):
+            dialog:
                 The dialog instance to display. Must not already be open.
 
         Raises:
@@ -350,8 +350,7 @@ def pop_dialog(self) -> Optional[DialogControl]:
         and returns the closed dialog.
 
         Returns:
-            Optional[DialogControl]:
-                The closed dialog instance if one was found, otherwise `None`.
+            The closed dialog instance if one was found, otherwise `None`.
         """
         dialog = next(
             (dlg for dlg in reversed(self._dialogs.controls) if dlg.open), None