Remove View Transitions to fix sluggish sidebar highlight switching

Author: O6lvl4

src/components/Head.astro

@@ -1,63 +1,6 @@
 ---
 import type { Props } from '@astrojs/starlight/props';
 import Default from '@astrojs/starlight/components/Head.astro';
-import { ClientRouter } from 'astro:transitions';
 ---
 
 <Default {...Astro.props}><slot /></Default>
-<ClientRouter fallback="none" />
-<style is:inline>
-  .sl-markdown-content h2,
-  .sl-markdown-content .sl-heading-wrapper.level-h2 {
-    margin-top: 2.5rem !important;
-    margin-bottom: 1rem !important;
-  }
-  .sl-markdown-content h3,
-  .sl-markdown-content .sl-heading-wrapper.level-h3 {
-    margin-top: 2rem !important;
-    margin-bottom: 0.75rem !important;
-  }
-  .sl-markdown-content h4,
-  .sl-markdown-content .sl-heading-wrapper.level-h4 {
-    margin-top: 1.5rem !important;
-    margin-bottom: 0.5rem !important;
-  }
-</style>
-<style is:global>
-  /* Keep header stable during view transitions */
-  header {
-    view-transition-name: site-header;
-  }
-  ::view-transition-old(site-header),
-  ::view-transition-new(site-header),
-  ::view-transition-old(site-title),
-  ::view-transition-new(site-title) {
-    animation: none;
-    mix-blend-mode: normal;
-  }
-
-  /* Preserve sidebar scroll position across page transitions */
-  .sidebar-content {
-    view-transition-name: sidebar;
-  }
-  ::view-transition-old(sidebar),
-  ::view-transition-new(sidebar) {
-    animation: none;
-  }
-</style>
-<script>
-  // Preserve sidebar scroll position across view transitions
-  document.addEventListener('astro:before-preparation', () => {
-    const sidebar = document.querySelector('.sidebar-content');
-    if (sidebar) {
-      sessionStorage.setItem('sidebar-scroll', String(sidebar.scrollTop));
-    }
-  });
-  document.addEventListener('astro:after-swap', () => {
-    const sidebar = document.querySelector('.sidebar-content');
-    const saved = sessionStorage.getItem('sidebar-scroll');
-    if (sidebar && saved) {
-      sidebar.scrollTop = parseInt(saved, 10);
-    }
-  });
-</script>