feat(drivers): add session storage driver

[CorentinTh]

Hi !

This PR adds the session storage driver

• Driver implementation
• Unit test
• Updated doc

[nuxt-studio]

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[CorentinTh]

It has a similar api to the local storage driver, so one could have use :

const storage = createStorage({
  driver: localStorageDriver({ base: "app:", localStorage: window.sessionStorage }),
});

So what do you think of this driver ?

[CorentinTh]

Since they have a similar API with localstorage, it can also be written like :

import { defineDriver } from "./utils";
import localStorageDriver from './localstorage'

export interface SessionStorageOptions {
  base?: string;
  window?: typeof window;
  sessionStorage?: typeof window.sessionStorage;
}

export default defineDriver((opts: SessionStorageOptions = {}) => {
  if (!opts.window) {
    opts.window = typeof window !== "undefined" ? window : undefined;
  }
  if (!opts.sessionStorage) {
    opts.sessionStorage = opts.window?.sessionStorage;
  }
  if (!opts.sessionStorage) {
    throw new Error("localStorage not available");
  }

 return localStorageDriver({...opts, localStorage: opts.sessionStorage})
});

But it induces coupling between drivers, and decrease maintainability 🤷🏻

[CorentinTh]

Hi @pi0 !
Let me know if I have something to change 🙏🏻

[pi0]

LGTM 💯

Regarding refactor to extend local storage, let's see how frequently we need to update both and if makes sense to extend for easier maintenance.