message: chore(pwa2): tweaks
diff: import mitt from "mitt";
  import { onMounted, provide } from "vue";
  -import { pwaEventSymbol, useForceUpdate, useRegister } from "./index.js";
  +import { pwaEventSymbol } from "./usePWAEvent.js";
  +import { useForceUpdate } from "./useForceUpdate.js";
  +import { useRegister } from "./useRegister.js";
  import type { PWAEvent } from "./index.js";
  // eslint-disable-next-line @typescript-eslint/naming-convention
  