Go-like syntax to handle errors

Describe the feature

I suggest to add throw: boolean option so we can return the HTTP error instead of throwing it. This way users can get full type safety after implementation of Typed API definition.
Example:

const { data, error } = await $fetch('/api/v1', { throw: false })

or not throw by default:

const $api = $fetch.create<unknown, ApiDefinition>({
  baseURL: 'http://httpstat.us',
  throw: false
})

const { data, error } = await $api('/500')

error // -> error is typed here based on the ApiDefinition

data - 2xx response if OK, otherwise undefined
error - 5xx, 4xx response if not OK, otherwise undefined

Alternatives

Return array:

const [data, error] = $fetch('/api/v1', { throw: false })

Additional information

• Would you be willing to help implement this feature?

Start by reading the typed API definition work in issue #364 and the proposed $fetch and $fetch.create examples here. Define how the throw: false option affects successful and failed responses, including the typed data and error values, and resolve whether the option is per-request or configured by default.