Enable animation

Author: darrenburns

src/textual/widgets/_footer.py

@@ -253,14 +253,14 @@ async def bindings_changed(self, screen: Screen) -> None:
     def _on_mouse_scroll_down(self, event: events.MouseScrollDown) -> None:
         if self.allow_horizontal_scroll:
             self._clear_anchor()
-            if self._scroll_right_for_pointer(animate=False):
+            if self._scroll_right_for_pointer(animate=True):
                 event.stop()
                 event.prevent_default()
 
     def _on_mouse_scroll_up(self, event: events.MouseScrollUp) -> None:
         if self.allow_horizontal_scroll:
             self._clear_anchor()
-            if self._scroll_left_for_pointer(animate=False):
+            if self._scroll_left_for_pointer(animate=True):
                 event.stop()
                 event.prevent_default()