feat: allow customizing the rendering of video and audio elements #2203

[nperez0111]

Summary

An attempt to supercede #2229

Rationale

Changes

Impact

Testing

Screenshots/Video

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

Resolves #2203

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Project	Deployment	Preview	Updated (UTC)
blocknote	Ready	Preview	Dec 9, 2025 4:08pm
blocknote-agent-demo	Error		Dec 9, 2025 4:08pm
blocknote-website	Ready	Preview	Dec 9, 2025 4:08pm

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commit: 2a946db