Handle invalid argument errors

[natemoo-re]

Changes

• Previously, the dev server completely crashed when doing something like

---
import Foo from '../components/Foo.astro';
// Called directly via function call
console.log(Foo())
---
// Called inside an expression without `<Foo />` syntax
{items.map(Foo)}

• This PR fixes this situation by validating the input arguments before attempting to render
• If the arguments are invalid, we now throw a new InvalidComponentArgs error with helpful info

Testing

Tested manually since this is a smaller one. Can add a test if needed

Docs

/cc @withastro/maintainers-docs for feedback!

[changeset-bot]

🦋 Changeset detected

Latest commit: 6655535

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

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

[yanthomasdev]

Nice work @natemoo-re, I added a small docs related suggestion, but overall LGTM!