fix: change locale type to string to support Indonesian

Author: kiddo90-N

lib/i18n-core.ts

@@ -3,7 +3,7 @@ export type Locale = (typeof supportedLocales)[number];
 export const DEFAULT_LOCALE: Locale = "en";
 export const LOCALE_COOKIE = "app-locale";
 
-export const localeMeta: Record<Locale, { dir: "ltr" | "rtl"; label: string }> = {
+export const localeMeta: Record<string, { dir: "ltr" | "rtl"; label: string }> = {
   en: { dir: "ltr", label: "English" },
   ar: { dir: "rtl", label: "\u0627\u0644\u0639\u0631\u0628\u064a\u0629" },
   id: { dir: "ltr", label: "Bahasa Indonesia" },