feat(i18n): convert to opaque keys (#1848)

packages/html/src/cdn/i18n.ts

@@ -1,7 +1,7 @@
 export type {
+  FlatTranslations,
   Locale,
   TranslationParams,
-  Translations,
   Translator,
 } from '@videojs/core/i18n';
 export {
@@ -10,10 +10,13 @@ export {
   getBrowserTranslations,
   getI18nTranslations,
   hasRegisteredLocale,
+  isText,
   loadLocale,
   onI18nRegistryChange,
   registerI18n,
   resolveBrowserTranslationTarget,
+  resolveText,
   resolveTranslation,
   shouldAttemptBrowserTranslation,
+  translateText,
 } from '@videojs/core/i18n';