message: ts: fix useMap ts
diff: @@ -2,7 +2,7 @@ import { useMemo, useState } from 'react';
  import useMemoizedFn from '../useMemoizedFn';
  function useMap<K, T>(initialValue?: Iterable<readonly [K, T]>) {
  - const initValue = useMemo(() => {
  + const initValue = useMemo<Map<K, T>>(() => {
  return initialValue === undefined ? new Map() : new Map(initialValue);
  }, []);
  