style(ui): align usage dashboard section heading hierarchy (#277)

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: Lucenx9 <185146821+Lucenx9@users.noreply.github.com>
9c1a050959Simone committed on 9/17/2026, 4:42:11 PM· committed by GitHubparent1a94893
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