Accept className on action declarations and carry it through compiled actions, default toolbar controls, menu items, custom renderers, and custom controls. Keep preset action ordering consistent across toolbar and bubble placements, with coverage for default and custom rendering paths.
Introduce @workspace/lexical with composable actions, toolbars, embeds, rich-text nodes, media uploads, selection utilities, HTML serialization, and theme styling.\n\nLocalize built-in controls through MessageDescriptor catalogs for English and Simplified Chinese, while providing an English I18nProvider fallback for standalone editor use. Include focused unit coverage for actions, controls, serialization, plugins, public API, and catalogs.