feat(frontend): start settings

Foxnouns.Frontend/src/lib/index.ts

@@ -1,6 +1,7 @@
 // place files you want to import through the `$lib` alias in this folder.
 
 import type { Cookies } from "@sveltejs/kit";
+import { DateTime } from "luxon";
 
 export const TOKEN_COOKIE_NAME = "__Host-pronounscc-token";
 
@@ -10,3 +11,6 @@ export const clearToken = (cookies: Cookies) => cookies.delete(TOKEN_COOKIE_NAME
 
 // TODO: change this to something we actually clearly have the rights to use
 export const DEFAULT_AVATAR = "https://pronouns.cc/default/512.webp";
+
+export const idTimestamp = (id: string) =>
+	DateTime.fromMillis(parseInt(id, 10) / (1 << 22) + 1_640_995_200_000);