### 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
Node *node = remove_list[0];
						if (node == editor_data->get_edited_scene_root()) {
							msg = vformat(TTR("Delete the root node \"%s\"?"), node->get_name());
						} else if (node->get_scene_file_path().is_empty() && node->get_child_count() > 0) {
							
							msg = vformat(TTR("Delete node \"%s\" and its children?"), node->get_name());
						} else {
							msg = vformat(TTR("Delete node \"%s\"?"), node->get_name());
						}
					}
					if (has_tracks_to_delete) {
						if (!msg.is_empty()) {
							msg += "\n";
						}
						msg += TTR("Some nodes are referenced by animation tracks.");
						delete_tracks_checkbox->show();
					} else {
						delete_tracks_checkbox->hide();
					}
				}
				delete_dialog_label->set_text(msg);
				
				
				
				delete_dialog->reset_size();
				delete_dialog->popup_centered();
			}
		} break;
		case TOOL_NEW_SCENE_FROM: {
			if (!profile_allow_editing) {