[1.58.x] Uplift: News: add "es_AR", "fr_FR" and "de_DE" to default en…

…abled locales (#20273)

* Merge pull request #20197 from brave/news-regions-fr-de

News: add "fr_FR" and "de_DE" to default enabled locales

* Merge pull request #20286 from brave/news-regions-ar

News: add "es_AR" to default region list

components/brave_news/browser/locales_helper.cc

@@ -35,8 +35,8 @@ constexpr auto kEnabledLanguages =
     base::MakeFixedFlatSet<base::StringPiece>({"en", "ja"});
 // We can add to this list as new locales become available to have Brave News
 // show when it's ready for those users.
-constexpr auto kEnabledLocales =
-    base::MakeFixedFlatSet<base::StringPiece>({"es_ES", "es_MX", "pt_BR"});
+constexpr auto kEnabledLocales = base::MakeFixedFlatSet<base::StringPiece>(
+    {"es_ES", "es_MX", "es_AR", "pt_BR", "fr_FR", "de_DE"});
 
 bool HasAnyLocale(const base::flat_set<std::string>& locales,
                   const mojom::Publisher* publisher) {