improve rateLimiter with support for unstorage

[Baroshem]

Is your feature request related to a problem? Please describe.

Describe the solution you'd like

In several examples, rateLimiter is not suitable for production applications. I recommend to make it optional instead of enabling it by default.

Describe alternatives you've considered

Additional context

[Baroshem]

Maybe consider using -> https://github.com/timb-103/nuxt-rate-limit

[Baroshem]

Create https://github.com/vercel/next.js/tree/canary/examples/api-routes-rate-limit with unstorage provider options passed from the configuration