fix(website): trim sponsorship page nav and hero stats

Remove the 'All projects' nav link and total_entries hero stat from the
sponsorship page. Rename 'View the repository' CTA to 'View on GitHub'.

Co-Authored-By: Claude <noreply@anthropic.com>

website/templates/sponsorship.html

@@ -12,7 +12,6 @@
     <nav class="hero-topbar category-topbar" aria-label="Site">
       <a href="/" class="hero-brand-mini">Awesome Python</a>
       <div class="hero-topbar-actions">
-        <a href="/#library-index" class="hero-topbar-link">All projects</a>
         <a
           href="https://github.com/vinta/awesome-python/blob/master/CONTRIBUTING.md"
           class="hero-topbar-link hero-topbar-link-strong"
@@ -50,7 +49,7 @@
           class="hero-action hero-action-secondary"
           target="_blank"
           rel="noopener"
-          >View the repository</a
+          >View on GitHub</a
         >
       </div>
     </div>