Accessibility issue: All page content should be contained by landmarks on /django-pattern-library/demo/render-pattern/patterns/atoms/sprites/sprites.html

[!NOTE]
This is a best-practice recommendation, not a definite WCAG failure.

What

An accessibility scan flagged an element on https://torchbox.github.io/django-pattern-library/demo/render-pattern/patterns/atoms/sprites/sprites.html because all page content should be contained by landmarks. Learn more about why this was flagged by visiting https://dequeuniversity.com/rules/axe/4.11/region?application=playwright.

The following element needs attention:

• <ul> (selector: ul)

To fix this, ensure all page content is contained by landmarks.

Specifically:

Fix any of the following:

• Some page content is not contained by landmarks

Acceptance Criteria

• The specific violation reported in this issue is no longer reproducible.
• The fix MUST meet the accessibility standards specified by the repository or organization (WCAG 2.2 if applicable).
• A test SHOULD be added to ensure this specific violation does not regress.
• This PR MUST NOT introduce any new accessibility issues or regressions.

Start with the rendered entry point patterns/atoms/sprites/sprites.html and inspect the source template that produces the reported ul element. Run the Playwright accessibility scan against that page, then confirm the reported landmark violation is gone and add a regression test if the repository has an applicable accessibility test setup.