feat: add animation to LoginPage

src/assets/css/App.css

@@ -46,3 +46,16 @@
 .read-the-docs {
   color: #888;
 }
+
+/* Copyright transition styles */
+.copyright-login {
+  position: fixed;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+}
+
+.copyright-normal {
+  position: relative;
+  transform: none;
+}