Proposal: Add AbortSignal.timeout() shorthand to "Fetch: Abort" article #3988

Description

The "Fetch: Abort" article excellently explains the mechanics of AbortController and demonstrates a manual timeout using

setTimeout(() => controller.abort(), 1000)

Since aborting fetches due to time constraints is a very common use case, it would be highly beneficial for learners to also see the modern AbortSignal.timeout() method.

Proposal

I propose adding a short subsection titled ### AbortSignal.timeout() immediately following the try..catch block of the manual timeout example. This section will demonstrate the shorthand syntax and note the important distinction that it throws a TimeoutError rather than an AbortError.