Introduce first() and last() Functions for Components

[KhudaDad414]

Context:

Currently, when working with AsyncAPI, accessing the first or last component requires using array indexing, like so:

parsedAsyncAPI.channels().all().filter((c) => c.address() === address())[0]

This method, while effective, can be less intuitive and may not clearly convey the developer's intent.

Proposed Solution

I propose adding first() and last() functions to the parser-api. These functions would allow users to directly retrieve the first or last component in a more readable and straightforward manner. The proposed usage would be:

// For the first channel
parsedAsyncAPI.channels().all().filter((c) => c.address() === address).first()

// For the last channel
parsedAsyncAPI.channels().all().filter((c) => c.address() === address).last()

[github-actions]

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