FIX: Heading tags hierarchy

[anz504]

What does this PR do?

Replace the logo h1 with a span, and change the footer heading to a span too.

Why are we doing this?

For SEO optimization and better hierarchy

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Test Case(s):

Test Result(s):

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Checklist

• Tested locally
• Added new dependencies
• Updated the docs
• Added a test

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[Copilot]

Pull request overview

This PR adjusts heading usage in the shared layout to improve the page’s overall heading hierarchy for SEO and semantics, moving the primary <h1> into the main content and demoting decorative/section labels in header and footer.

Changes:

• Replace the header logo text <h1> with a <span> so the main hero section in index.astro owns the page’s primary <h1>.
• Replace the footer section titles’ <h3> elements with styled <span> elements to avoid additional structural headings in the footer.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
web/src/components/layout/Header.astro	Demotes the logo text from an <h1> to a non-heading <span> so the hero section’s <h1> becomes the sole primary heading.
web/src/components/layout/Footer.astro	Changes footer link group titles from <h3> to <span>, keeping the same styling while removing them from the document heading outline.

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

[Copilot]

Changing this element from an h3 to a span removes the semantic heading for each footer link group, which can make these sections harder to discover and navigate for screen reader users who rely on heading navigation. Consider preserving a heading element (or adding appropriate ARIA semantics) while still achieving the desired visual style, so that the footer structure remains accessible.