Reimplement cache more lol

packages/frontend/src/hooks/useStore.ts

@@ -1,10 +1,8 @@
-import { type User } from "common/the_api";
+import { Update } from "common";
+import { User } from "common/the_api";
 import { identity } from "effect";
 import { useLayoutEffect, useState } from "react";
 
-export type Update<T> = T | ((prev: T) => T);
-export type Updater<T> = (action: Update<T>) => void;
-
 export const mapProp = <const K extends string, T>(prop: K, action: Update<T>) => <O extends { readonly [_ in K]: T }>(object: O): O => {
 	return Object.freeze({ ...object, [prop]: typeof action === "function" ? (action as (prev: T) => T)(object[prop]) : action });
 };