style(ui): update auth pages layout and navigation capitalization

This commit improves the visual design of the auth pages by adding a new layout wrapper with an animated blob background effect and updating the auth card shell with a glassmorphism style. It also updates the navigation items to use capitalized labels instead of lowercase for better readability.

src/app/globals.css

@@ -354,3 +354,22 @@
   justify-content: flex-end;
   animation: blink-out 6s ease-in-out infinite;
 }
+
+@keyframes blob {
+  0% { transform: translate(0px, 0px) scale(1); }
+  33% { transform: translate(30px, -50px) scale(1.1); }
+  66% { transform: translate(-20px, 20px) scale(0.9); }
+  100% { transform: translate(0px, 0px) scale(1); }
+}
+
+.animate-blob {
+  animation: blob 10s infinite alternate ease-in-out;
+}
+
+.animation-delay-2000 {
+  animation-delay: 2s;
+}
+
+.animation-delay-4000 {
+  animation-delay: 4s;
+}