Remove site and projectRoot options

[bluwy]

Changes

Closes #692

Remove site and projectRoot options, in favour of injectGlobals option which is more generic (Name could be changed 🤔 ), e.g.

transform(source, {
  injectGlobals: JSON.stringify(astroConfig.site)
})

The compiler would output $$createAstro("https://astro.build"). This allows us to pass params dynamically to createAstro without leaking business logic that gets added to, e.g. Astro.site.

Further discussion on discord: https://discord.com/channels/830184174198718474/1060212452756815954/1060564993768169542

Note this change goes in hand to this Astro code: https://github.com/withastro/astro/blob/6a95790b45114e2e9fae65f513c6c9381ccdf376/packages/astro/src/runtime/server/astro-global.ts#L19-L32

Testing

Updated the test to cover this new option.

Docs

n/a

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🦋 Changeset detected

Latest commit: d35f8dd

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

This PR includes changesets to release 1 package

Name	Type
@astrojs/compiler	Minor

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[matthewp]

lgtm, you'll need to create a follow-up PR relatively soon to use this new option astro.

[bluwy]

I've created withastro/astro#5803 👍 Running the tests locally it seems to work fine.

@natemoo-re I'd love to have your eyes on this too if you have thoughts on it.

[natemoo-re]

LGTM! Only comment is around naming, but non-blocking and I leave the final decision up to you.