[TSX] Fix multiline quoted attribute mapping

[natemoo-re]

Changes

• Closes #825
• Fixes mapping for quoted attributes with multiline values

Testing

Test added

Docs

N/A, bug fix only

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: a7499d544760d582464359d306da402ce8070cf7

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 | Patch |

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