* feat(i18n): Add Romanian translation
* feat(i18n): Update Romanian translation to lang file changes
* feat(i18n): Add new Romanian translation entries
* fix(i18n): add settings.languageRo to remaining locale bundles
Romanian was missing from the language picker labels when UI was not en/ro;
add endonym-style names per locale (de/fr/nl/nb/ru/es/zh) for consistency.
* fix(i18n): use Romanian autonym for settings.languageRo everywhere
Match existing language picker convention (e.g. languageDe is Deutsch in
every locale bundle). Replaces UI-language translations of Romanian.
Mihai Toderita