Fix Typo in subarray.nr

[Hack666r]

Pull Request Title

Fix Typo in subarray.nr

Description

Corrected a typo in the subarray.nr file to improve documentation clarity.

Changes Made:

• File Modified: aztec/src/utils/array/subarray.nr
• Summary of Changes:
  • Line 25: Corrected the word "emtpy" to "empty" in the comment for clarity.

Related Issues

N/A

Checklist

• The change follows the project's contributing guidelines.
• Documentation is now clear and correct.
• No code functionality is impacted by this change.

Testing

• N/A (Comment update only)

Additional Notes

This is a minor typo fix in the documentation within the code. Please review to ensure no other similar typos are present.

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Allow edits by maintainers: [x]