fix spelling mistake (#15146)

# Objective

Fix spelling mistake: `interned_root_notes` -> `interned_root_nodes`

crates/bevy_ui/src/layout/mod.rs

@@ -76,7 +76,7 @@ pub struct UiLayoutSystemRemovedComponentParam<'w, 's> {
 #[doc(hidden)]
 #[derive(Default)]
 pub struct UiLayoutSystemBuffers {
- interned_root_notes: Vec<Vec<Entity>>,
+ interned_root_nodes: Vec<Vec<Entity>>,
  resized_windows: EntityHashSet,
  camera_layout_info: EntityHashMap<CameraLayoutInfo>,
 }
@@ -122,7 +122,7 @@ pub fn ui_layout_system(
  #[cfg(feature = "bevy_text")] mut text_pipeline: ResMut<TextPipeline>,
 ) {
  let UiLayoutSystemBuffers {
- interned_root_notes,
+ interned_root_nodes,
  resized_windows,
  camera_layout_info,
  } = &mut *buffers;
@@ -147,7 +147,7 @@ pub fn ui_layout_system(
  size,
  resized,
  scale_factor: scale_factor * ui_scale.0,
- root_nodes: interned_root_notes.pop().unwrap_or_default(),
+ root_nodes: interned_root_nodes.pop().unwrap_or_default(),
  }
  };
 
@@ -280,7 +280,7 @@ pub fn ui_layout_system(
  }
 
  camera.root_nodes.clear();
- interned_root_notes.push(camera.root_nodes);
+ interned_root_nodes.push(camera.root_nodes);
  }
 
  fn update_uinode_geometry_recursive(