ScrollLaunch badge for public discovery

Another public discovery badge joined the xpenser footer as part of the launch and SEO push.

This release came from PR #51 and is now part of the xpenser release archive. It gives people evaluating an open-source expense tracker a clearer view of how the product has improved over time.

What changed

• Added the ScrollLaunch badge to public pages.
• Kept the badge implementation consistent with related footer badges.
• Supported product discovery without changing authenticated app behavior.

Why it matters

Launch directories can help early users find a project before search rankings mature.

Where it fits

This contributes to the website presence around xpenser while the app continues to grow.

For a broader product overview, start with the xpenser home page. Developers can also explore the personal finance API and MCP tools, while self-hosters can review the self-hosted personal finance tracker page.