LangSelect's scoped CSS landed on the shared store chunk, whose stylesheet
the editor never loaded (only the public selector path injected it), so the
editor's language selector rendered unstyled on untranslated pages. Collect
editor stylesheets from the entry's imported chunks too (same traversal as
the langselect assets).
Also: hreflang alternates now skip languages disabled site-wide, and all
selectors (page editor, structure tab, public selector) order languages the
same way — primary first, then the lang tab's geographic grouping.