feat: add page transition animations and loading indicators

- Add nextjs-toploader for instant top progress bar on navigation
- Add next-view-transitions for View Transitions API page transitions
- Enhance template.tsx page enter animation (0.45s, scale effect)
- Replace next/link with next-view-transitions Link for smooth transitions
- Add prefers-reduced-motion support for accessibility

Co-authored-by: Cursor <cursoragent@cursor.com>

styles/globals.css

@@ -122,11 +122,11 @@ body {
 @keyframes pageEnter {
   from {
     opacity: 0;
-    transform: translateY(20px);
+    transform: translateY(16px) scale(0.99);
   }
   to {
     opacity: 1;
-    transform: translateY(0);
+    transform: translateY(0) scale(1);
   }
 }
 
@@ -134,6 +134,13 @@ body {
   opacity: 0;
 }
 
+@media (prefers-reduced-motion: reduce) {
+  .page-transition {
+    opacity: 1;
+    transform: none;
+  }
+}
+
 /* Scroll reveal animations - CSS only */
 .scroll-reveal {
   opacity: 0;