feat(module): support i18n in components (#2553)

Co-authored-by: Benjamin Canac <canacb1@gmail.com>

src/runtime/composables/defineLocale.ts

@@ -0,0 +1,8 @@
+import type { Locale, LocalePair } from '../types/locale'
+
+export function defineLocale(name: string, pair: LocalePair): Locale {
+  return {
+    name,
+    ui: pair
+  }
+}