Proposal to Add Cross-Page State Synchronization to Pinia Plugin Persist

[yansenlei]

It is suggested to add a new feature to enable cross-page state synchronization in Pinia Plugin Persist. This feature can work with listening to the localStorage event, which will automatically synchronize the status of other web pages after one page updates the status. This will make it easier to handle most complex synchronization logic.

useEventListener(window, 'storage', (event) => {
    if (event.key === STORAGE_KEY) {
      const obj = JSON.parse(event.newValue || '{}')
      mykey.value = obj.mykey
    }
})