Refactor plot title to display only the metric name without the path

[qgallouedec]

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Short description

Screen.Recording.2026-03-27.at.2.18.09.PM.mov

This PR remove the prefix when "Show section header" is enabled

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• I used AI to do most of it.
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Type of Change

• Bug fix
• New feature (non-breaking)
• New feature (breaking change)
• Documentation update
• Test improvements

Related Issues

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Closes: None

Testing and linting

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python -m pytest

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ruff check --fix --select I && ruff format

[gradio-pr-bot]

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•	Name	Status	URL
🦄	Changes	detected!	Details

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
trackio	patch

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• Refactor plot title to display only the metric name without the path

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[HuggingFaceDocBuilderDev]

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[abidlabs]

LGTM thanks @qgallouedec!