chore: replace node-fetch for a smaller package

[AdrianGonz97]

node-fetch is humongous, sitting at a hefty 17MB (this includes the size of it's modules and dependencies). The total package size of shadcn-svelte is 18MB. node-fetch makes up the vast majority of it.

This PR replaces it with node-fetch-native, which is ~700KB, drastically reducing our package size.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 5a497b4

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

This PR includes changesets to release 1 package

Name	Type
shadcn-svelte	Patch

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