Feat: Allow users to input their own fetch functions (for proxies)

[OIRNOIR]

You can pass a function that works similarly to the node-fetch fetch function which will be used instead of the node-fetch function.

[changeset-bot]

🦋 Changeset detected

Latest commit: 2c65fa2

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
kiai.js	Minor

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[what-the-diff]

PR Summary

• Enhanced KiaiClient.ts and RequestHandler.ts
  The files now import additional components (namely fetch, RequestInfo, and RequestInit) from the "node-fetch" module to extend functionality.

• Added optional fetchFunction parameter to KiaiClient.ts and RequestHandler.ts constructors
  This parameter will allow for a more advanced and customizable handling of data fetching operations which can prove beneficial in various use cases.

• Refactored the sendRequest method in RequestHandler.ts
  Now, it utilizes the fetchFunction as its data fetching mechanism instead of the standard fetch method. Again, this allows for more sophisticated and diverse handling of data requests.

[OIRNOIR]

AI is bad

[thewilloftheshadow]

Can you add a changeset please

[OIRNOIR]

@thewilloftheshadow It wants you to approve my commit before merging