feat: wire public posts api

src/i18nLanguages.ts

@@ -16,3 +16,11 @@ export function languageLabel(t: (key: string) => string, code: string) {
   const label = t(key);
   return label === key ? code : label;
 }
+
+export function sourceLanguageQuery(code: string) {
+  return code === "zh-CN" ? "zh" : code;
+}
+
+export function localizationKey(code: string) {
+  return code === "zh-CN" || code.startsWith("zh") ? "zh" : code;
+}