style: sticky menu header

[AhamSammich]

Current dependencies on/for this PR:

• main
  • PR #21 👈

This stack of pull requests is managed by Graphite.

[AhamSammich]

Merge activity

• Dec 24, 7:15 PM: @AhamSammich merged this pull request with Graphite.

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 609c796):

https://new-hanafuda--pr21-12-24-style-sticky-m-hwk4abdv.web.app

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