fix(react-email): Missing URL on global context for email VM

[gabrielmfern]

Background

As we need to pre-import the modules from Node into the app before loading them with vm
we also need to define the context in which the code will run for us to get the email's component,
this means that we need to pass in a few other global things like Buffer that the global
dynamically doesn't contain.

What was the issue?

That being said, something that was missing from the global context was the URL class,
which this PR adds. Closes #1229

How can I test to make sure it's fixed?

1. Run npx tsx ../../packages/react-email/src/cli/index.ts dev inside of ./apps/demo
2. Modify the email at ./apps/demo/emails/airbnb-review.tsx by adding the following:

console.log(new URL(""));

3. Open http://localhost:3000/preview/airbnb-review.tsx
4. Verify that this errors with "Invalid path" instead of with URL is not defined

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
react-email	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Feb 7, 2024 0:32am
react-email-demo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Feb 7, 2024 0:32am

[ZiBuDo]

URLSearchParams I get this not defined in my env, wondering if this can be added as well?

[pkit]

@ZiBuDo as you can see even the current PR is un-merged yet. lol