fix: polish Pi-hole connection states

internal/web/static/app.js

@@ -198,6 +198,18 @@
     syncDirtyState();
   }
 
+  for (const details of document.querySelectorAll('details[data-scroll-page-end]')) {
+    details.addEventListener('toggle', () => {
+      if (!details.open) return;
+      window.requestAnimationFrame(() => {
+        window.scrollTo({
+          top: document.documentElement.scrollHeight,
+          behavior: window.matchMedia('(prefers-reduced-motion: reduce)').matches ? 'auto' : 'smooth',
+        });
+      });
+    });
+  }
+
   const copyButtons = document.querySelectorAll('[data-copy-target]');
   for (const button of copyButtons) {
     button.addEventListener('click', async () => {