### Godot version

v4.2.beta.custom_build [a574c0296]

### System information

linux

### Issue description

Folder colors don't show up in file dialogs: when saving a scene, etc.

### Steps to reproduce

1. color a folder
2. create and open the save scene dialog and navigate to the colored folder
3. notice it's not shown its color in the file dialog

### Minimal reproduction project

any
new_menu->set_name("New");
		new_menu->connect("id_pressed", callable_mp(this, &FileSystemDock::_tree_rmb_option));
		p_popup->add_child(new_menu);
		p_popup->add_submenu_item(TTR("Create New"), "New", FILE_NEW);
		p_popup->set_item_icon(p_popup->get_item_index(FILE_NEW), get_editor_theme_icon(SNAME("Add")));
		new_menu->add_icon_item(get_editor_theme_icon(SNAME("Folder")), TTR("Folder..."), FILE_NEW_FOLDER);
		new_menu->add_icon_item(get_editor_theme_icon(SNAME("PackedScene")), TTR("Scene..."), FILE_NEW_SCENE);
		new_menu->add_icon_item(get_editor_theme_icon(SNAME("Script")), TTR("Script..."), FILE_NEW_SCRIPT);
		new_menu->add_icon_item(get_editor_theme_icon(SNAME("Object")), TTR("Resource..."), FILE_NEW_RESOURCE);
		new_menu->add_icon_item(get_editor_theme_icon(SNAME("TextFile")), TTR("TextFile..."), FILE_NEW_TEXTFILE);
		p_popup->add_separator();
	}
	if (all_folders && foldernames.size() > 0) {
		p_popup->add_icon_item(get_editor_theme_icon(SNAME("Load")), TTR("Expand Folder"), FILE_OPEN);
		if (foldernames.size() == 1) {
			p_popup->add_icon_item(get_editor_theme_icon(SNAME("GuiTreeArrowDown")), TTR("Expand Hierarchy"), FOLDER_EXPAND_ALL);
			p_popup->add_icon_item(get_editor_theme_icon(SNAME("GuiTreeArrowRight")), TTR("Collapse Hierarchy"), FOLDER_COLLAPSE_ALL);
		}
		p_popup->add_separator();
		if (p_paths[0] != "res://") {
			PopupMenu *folder_colors_menu = memnew(PopupMenu);
			folder_colors_menu->set_name("FolderColor");
			folder_colors_menu->connect("id_pressed", callable_mp(this, &FileSystemDock::_folder_color_index_pressed).bind(folder_colors_menu));
			p_popup->add_child(folder_colors_menu);
			p_popup->add_submenu_item(TTR("Set Folder Color..."), "FolderColor");
			p_popup->set_item_icon(-1, get_editor_theme_icon(SNAME("Paint")));
			folder_colors_menu->add_icon_item(get_editor_theme_icon(SNAME("Folder")), TTR("Default (Reset)"));
			folder_colors_menu->set_item_icon_modulate(0, get_theme_color(SNAME("folder_icon_color"), SNAME("FileDialog")));
			folder_colors_menu->add_separator();
			for (const KeyValue<String, Color> &E : folder_colors) {