feat: Unit tests for block type guards

[matthewlipski]

Summary

This PR adds unit tests for editorHasBlockWithType.

The code for editorHasBlockWithType has also been changed slightly - when checking for a block with a given propSchema and values, the values can be an unordered subset of the ones in the schema. Previously, the 2 arrays had to be identical in order for the type guard to return true.

Rationale

Needed for #2096 and useful in general.

Changes

See above.

Impact

N/A

Testing

See above.

Screenshots/Video

N/A

Checklist

• Code follows the project's coding standards.
• Unit tests covering the new feature have been added.
• All existing tests pass.
• The documentation has been updated to reflect the new feature

Additional Notes

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Project	Deployment	Preview	Updated (UTC)
blocknote	Ready	Preview	Oct 14, 2025 4:44pm
blocknote-website	Ready	Preview	Oct 14, 2025 4:44pm

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commit: bb8f336