### Godot version

v4.1.1.stable.official [bd6af8e0e]

### System information

Godot v4.1.1.stable - Debian GNU/Linux trixie/sid trixie - Vulkan (Compatibility) - Mesa Intel(R) HD Graphics 520 (SKL GT2) () - Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz (4 Threads)

### Issue description

After right clicking in thet "Filter Nodes" menu in the scene tree dock, the sub-menu is populated with a "Search" icon.

If I later switch themes in the same session, this icon is never updated to match the new theme.

![image](https://github.com/godotengine/godot/assets/660911/14336bb3-12ca-48c8-b030-8ada6ac27ec6)


### Steps to reproduce

1. Right click in the "Filter Nodes" menu in scene tree dock
2. Switch themes
3. Right click again in the "Filter Nodes" menu

Expected result: Icon has updated to match the theme I am currently using
Actual result: Icon is still using the theme I launched Godot with

### Minimal reproduction project

N/A
if (top_node != n) {
				if (smaller_path_to_top > path_length) {
					top_node = n;
					smaller_path_to_top = path_length;
					only_one_top_node = true;
				} else if (smaller_path_to_top == path_length) {
					if (only_one_top_node && top_node->get_parent() != n->get_parent()) {
						only_one_top_node = false;
					}
				}
			}
		}
		Node *parent = nullptr;
		if (only_one_top_node) {
			parent = top_node->get_parent();
		} else {
			parent = top_node->get_parent()->get_parent();
		}
		_do_create(parent);
		Vector<Node *> nodes;
		for (Node *E : selection) {
			nodes.push_back(E);
		}
		
		Node *last_created = editor_selection->get_selected_node_list().front()->get();
		_do_reparent(last_created, -1, nodes, true);
	}
	scene_tree->get_scene_tree()->grab_focus();
}
void SceneTreeDock::replace_node(Node *p_node, Node *p_by_node, bool p_keep_properties, bool p_remove_old) {