chore: provide indent option for print

[manuel3108]

Relevant for sveltejs/cli#1138.
This is basically just an option from esrap that we pass through. That will allow tools like sv migrate to provide a guessed indent based on the other file contents and therefore allow us to produce way smaller diffs. Since we are just passing an option, there is no need for a test here.

Technically a feat: but i dont think this is relevant enough.

Before submitting the PR, please make sure you do the following

• It's really useful if your PR references an issue where it is discussed ahead of time. In many cases, features are absent for a reason. For large changes, please create an RFC: https://github.com/sveltejs/rfcs
• Prefix your PR title with feat:, fix:, chore:, or docs:.
• This message body should clearly illustrate what problems it solves.
• Ideally, include a test that fails without this PR but passes with it.
• If this PR changes code within packages/svelte/src, add a changeset (npx changeset).

Tests and linting

• Run the tests with pnpm test and lint the project with pnpm lint

[changeset-bot]

🦋 Changeset detected

Latest commit: aff8861

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

This PR includes changesets to release 1 package

Name	Type
svelte	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-svelte-18474-svelte.vercel.app/

[github-actions]

Playground

pnpm add https://pkg.pr.new/svelte@18474

[manuel3108]

No idea what tsgo has as a problem, but seems unrelated.

[pkg-svelte-dev]

Install the latest version of svelte from aff8861:

pnpm add https://pkg.svelte.dev/svelte/c/aff886124ab7abd5bd4951c666df9f3790a55966

Open in pkg.svelte.dev: https://pkg.svelte.dev/repos/svelte/pr/18474