fix: persist option none is not working

[snax4a]

I have fixed persist options. Before that, the 'none' option was not working. Now, when 'none' option is passed the state is not being saved to any store in action handler.

I have introduced PersistOption enum for better DX but string literals are also available for backward compatibility.

export enum PersistOption {
  None = 'none',
  OnAction = 'onAction',
  BeforeUnload = 'beforeUnload',
}

I have also updated the store factory options type so it's less hacky.

Locally everything seems to work correctly