[SG-39291] Accessibility: Multiple H1 tags on Repository Page

Created by: gitstart-sourcegraph

Description

There are multiple <H1/> elements: the Sourcegraph logo in the navigation bar, and the page title, which produces a warning in ARC Toolkit in the following pages::

Repository detail page Repository Commits Page Repository Compare Page

Expected Behaviour

The page title should be an <H2/>, but retain the current style. All other <H2/>s on the page should be downscaled to <H3/>, but retain their current styles. No warnings are reported under ARC Toolkit's "Structure and Semantics" tests.

Refs

SourceGraph Issue GitStart Issue

Test Plan

Navigate to the above listed pages and ensure that we only have one instance of h1 and h2 on each of the pages respectively.

App preview:

• Web
• Storybook

Check out the client app preview documentation to learn more.