[core] Synchronizers

[davidkpiano]

Added support for synchronizers in XState, allowing state persistence and synchronization across different storage mechanisms.

• Introduced Synchronizer interface for implementing custom synchronization logic
• Added sync option to createActor for attaching synchronizers to actors

import { createActor } from 'xstate';
import { someMachine } from './someMachine';
import { createLocalStorageSync } from './localStorageSynchronizer';

const actor = createActor(someMachine, {
  sync: createLocalStorageSync('someKey')
});

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 03854c382ecf76ac79a86f91543701502c38d22b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 6 packages

| Name | Type | | -------------- | ----- | | xstate | Minor | | @xstate/graph | Major | | @xstate/react | Major | | @xstate/solid | Major | | @xstate/svelte | Major | | @xstate/vue | Major |

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