### Godot version

master

### System information

Godot v4.2.beta (0ea75d77c) - Windows 10.0.22621 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 2070 (NVIDIA; 31.0.15.3598) - Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz (12 Threads)

### Issue description

When any of the Import, Filesystem, Node, or History docks are floating, changing an editor feature crashes the engine.
Changing any setting or selecting a different profile triggers it.

This is because `EditorNode::_feature_profile_changed` assumes the docks are in a `TabContainer`, and if they are floating they aren't in one.


### Steps to reproduce

Make any of these docks floating: Import, Filesystem, Node, or History
Open Editor Features (Editor -> Manage Editor Features...)
Make a profile (if you have none) or change a setting on the existing profile

### Minimal reproduction project

n/a
_init_callbacks.clear();
}
void EditorNode::_update_layouts_menu() {
	editor_layouts->clear();
	overridden_default_layout = -1;
	editor_layouts->reset_size();
	editor_layouts->add_shortcut(ED_SHORTCUT("layout/save", TTR("Save Layout")), SETTINGS_LAYOUT_SAVE);
	editor_layouts->add_shortcut(ED_SHORTCUT("layout/delete", TTR("Delete Layout")), SETTINGS_LAYOUT_DELETE);
	editor_layouts->add_separator();
	editor_layouts->add_shortcut(ED_SHORTCUT("layout/default", TTR("Default")), SETTINGS_LAYOUT_DEFAULT);
	Ref<ConfigFile> config;
	config.instantiate();
	Error err = config->load(EditorSettings::get_singleton()->get_editor_layouts_config());
	if (err != OK) {
		return; 
	}
	List<String> layouts;
	config.ptr()->get_sections(&layouts);
	for (const String &layout : layouts) {
		if (layout == TTR("Default")) {
			editor_layouts->remove_item(editor_layouts->get_item_index(SETTINGS_LAYOUT_DEFAULT));
			overridden_default_layout = editor_layouts->get_item_count();
		}
		editor_layouts->add_item(layout);
	}
}
void EditorNode::_layout_menu_option(int p_id) {