docs: "What's new in Svelte" March newsletter

[DreaminDani]

I'll be traveling a lot the second half of this month, so i've drafted the newsletter this week. let me know if i missed anything or feel free to add between now and the end of the month.

I'll check in again on the 29th to make sure I can clean things up before we merge :)

[changeset-bot]

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[huntabyte]

https://github.com/huntabyte/formsnap got a major rewrite and has improved docs https://formsnap.dev 😃

[huntabyte]

Released a new resizable pane library for svelte called PaneForge - Repo, Docs

[adiguba]

Hello,

Just a typo on the link :

https://svelte-5-preview.vercel.app/docs/runes#derived-by
instead of
https://svelte-5-preview.vercel.app/docs/runes#$derived-by

[DreaminDani]

@benmccann and/or @dummdidumm i think this is ready to merge.

[benmccann]

Suggested change

	Adapters can also now use an `emulate` function to provide dev and preview functionality (**2.5.0**, [Docs](https://kit.svelte.dev/docs/writing-adapters), [#11730](https://github.com/sveltejs/kit/pull/11730)). This will allow for an improved experience developing for Cloudflare in the near future ([11732](https://github.com/sveltejs/kit/pull/11732)).
	Adapters can also now use an `emulate` function to provide dev and preview functionality (**2.5.0**, [Docs](https://kit.svelte.dev/docs/writing-adapters), [#11730](https://github.com/sveltejs/kit/pull/11730)). This will allow for an improved experience developing for Cloudflare in the near future ([#11732](https://github.com/sveltejs/kit/pull/11732)).